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  1. #1401
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    I've finally got the spacers all in house for those wanting to fit bigger tyres to the STD models.
    There are three spacers, Comp models use all three (incl travel adjust), Pro uses two of them. Take a look and tell me if this makes sense:

    https://www.shockcraft.co.nz/mastodo...t-manitou.html
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  2. #1402
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    Does the unmodified (no extra spacers) Mastodon STD fork take 26x4.8 tires? Some website reviews say yes but the company's chart says no. Thanks

  3. #1403
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    it works with JJ 4.8 on my canyon dude.

  4. #1404
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    Quote Originally Posted by Lookbiker View Post
    Does the unmodified (no extra spacers) Mastodon STD fork take 26x4.8 tires? Some website reviews say yes but the company's chart says no. Thanks
    Clearing my Bud no problem.
    2017 Santa Cruz Tallboy C 29er
    2018 Canyon Dude fatty with Mastodon

  5. #1405
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    Quote Originally Posted by Lookbiker View Post
    Does the unmodified (no extra spacers) Mastodon STD fork take 26x4.8 tires? Some website reviews say yes but the company's chart says no. Thanks
    That depends entirely on who made the 4.8" tyre and what it actually measures at. I've got a Mastodon customer with Jumbo Jim 4.8's that he measured at 766mm. So close to the 758mm OD that he decided to run with it stock. This is possibly the same website review you mention.

    Officially the max you can run at standard height is (29.8" OD - 22" rim)/2 = 3.92" height.
    The 766mm measurement puts the JJ 4.8 (as measured) at 30.16" OD which makes them 4.08" tall from rim bead.

    Bottom line, is step outside the manufacturers specs at your own risk.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  6. #1406
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    Thanks. Going with the Extended version. I don't want to change to a different tire down the road only to discover that it doesn't fit. The 120mm Extended version has an axle to crown of 551mm so going with the 100mm Useful information here. Thank you

  7. #1407
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    Quote Originally Posted by Lookbiker View Post
    Thanks. Going with the Extended version. I don't want to change to a different tire down the road only to discover that it doesn't fit. The 120mm Extended version has an axle to crown of 551mm so going with the 100mm Useful information here. Thank you
    Unless you need 150mm travel with 5" rubber you're probably better with the STD version and some extra spacers under the bumpers.

    A 120mm STD can be configured with a few spacers to do exactly the same tyre fitment and travel as a 100mm EXT. While still being able to fit up to 150mm travel with 4" rubber and having options in between.

    It maximises your future options. Where a 100mm EXT version limits them.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  8. #1408
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    Is it hard to change spacers on the STD ? Also, any advantage to going with the std with spacers versus 120mm Ext ? Thanks

  9. #1409
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    Quote Originally Posted by Lookbiker View Post
    Is it hard to change spacers on the STD ? Also, any advantage to going with the std with spacers versus 120mm Ext ? Thanks
    Changing spacers is lower legs off and they're right there.

    A standard has the option to go lower A-C if you fit smaller rubber in the future, the EXT can't without swapping shafts. That's basically it.

    If you're buying a fork to fit to one bike and never going to change it's not an issue. But I know the average MTBR forum user likes to swap stuff.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  10. #1410
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    It will be used 95% in the winter so 120 to 100mm will be fine. Leaning toward the 10Omm because the Big Jion is specíd for a 511 axle to crown. Thank you

  11. #1411
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    Hi, sorry if I missed the point, but have not been following the thread for a long time.
    I have bought a Pole Taiga with 5.05" 2xl Vee Tyres. I suppose the only model to use for that tyre is the EXT version.
    But have I understood correctly if you want to go for a smaller tire, that it is possible to take down the length on the EXT, so it will be similar to the Standard version, with taking out spacers?

  12. #1412
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    Quote Originally Posted by Rumblefish2010 View Post
    Hi, sorry if I missed the point, but have not been following the thread for a long time.
    I have bought a Pole Taiga with 5.05" 2xl Vee Tyres. I suppose the only model to use for that tyre is the EXT version.
    But have I understood correctly if you want to go for a smaller tire, that it is possible to take down the length on the EXT, so it will be similar to the Standard version, with taking out spacers?
    The EXT has longer internal shafts and cannot be lowered as far as the STD.

    The STD with spacers can do the same tyre size as the EXT, but loses 20mm of travel due to the shorter rods internally.
    The STD with spacers is 5.25" max tyres and 130mm max travel.
    The EXT can do 5.25" max tyres with 150mm max travel.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  13. #1413
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    Quote Originally Posted by Dougal View Post
    The EXT has longer internal shafts and cannot be lowered as far as the STD.

    The STD with spacers can do the same tyre size as the EXT, but loses 20mm of travel due to the shorter rods internally.
    The STD with spacers is 5.25" max tyres and 130mm max travel.
    The EXT can do 5.25" max tyres with 150mm max travel.
    Dougal...I think you need to emphasize the STD needs the "bottom out" spacers ( seeing so many people here are confused)
    The VEe 5.05 will slightly rub the crown when it bottoms.....the EXT has plenty of clearance.

  14. #1414
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    Quote Originally Posted by the mayor View Post
    Dougal...I think you need to emphasize the STD needs the "bottom out" spacers ( seeing so many people here are confused)
    The VEe 5.05 will slightly rub the crown when it bottoms.....the EXT has plenty of clearance.
    Absolutely. What's the OD of the Vee 5.05? These guys say 31.25": https://fat-bike.com/2015/08/product...2xl-5-05-tire/

    If that's true at 793mm then you need the full 20mm of spacers under the bottom-out bumpers in the STD fork. Which gives it the same bottom-out clearance as the EXT.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  15. #1415
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    Quote Originally Posted by Dougal View Post
    Absolutely. What's the OD of the Vee 5.05? These guys say 31.25": https://fat-bike.com/2015/08/product...2xl-5-05-tire/

    If that's true at 793mm then you need the full 20mm of spacers under the bottom-out bumpers in the STD fork. Which gives it the same bottom-out clearance as the EXT.
    Yup....it's a big tire. You might be able to get away with just 1 10mm spacer....but , yes, the full 20 would be better.
    I took a 120 STD...and with all the air let out, bounced it to compress the bumper and got the 5.05 to slightly rub while rolling along slow. It may or may not be worse at speed ( I wasn't going to try that)

  16. #1416
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    Quote Originally Posted by Rumblefish2010 View Post
    Hi, sorry if I missed the point, but have not been following the thread for a long time.
    I have bought a Pole Taiga with 5.05" 2xl Vee Tyres. I suppose the only model to use for that tyre is the EXT version.
    But have I understood correctly if you want to go for a smaller tire, that it is possible to take down the length on the EXT, so it will be similar to the Standard version, with taking out spacers?
    You can technically can take out spacers....but because of the longer air shaft.....it won't work out well ( I tried it)
    Don't over think it and buy a EXT

  17. #1417
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    Going to pull the trigger on a Mastodon Pro Ext for my medium Scott Big Jon tomorrow. Mostly winter riding with post holes 100mm or 120mm? Thanks

  18. #1418
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    I have a 120 Mastodon STD PRO in very good condition, low miles, uncut steerer! Steerer has never come loose

    PM me

    SOLD!
    Last edited by mikeetheviking; 11-28-2018 at 10:53 AM. Reason: sold

  19. #1419
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    Quote Originally Posted by mikeetheviking View Post
    I have a 120 Mastodon STD PRO in very good condition, low miles, uncut steerer! Steerer has never come loose

    PM me

    asking $450.00
    That's a great deal. If I was l was Lookbiker, or if I had not bought one 2 months ago, I would be all over that. With all the variations Manitou makes, the 120 STD seems to be adjustable enough to work for 95% of people.

  20. #1420
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    I donít want to deal with spacers for the wider tires so going with Extended version from the start

  21. #1421
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    Quote Originally Posted by GspotRider View Post
    Small Wozo frame has clearance issue with knob. A light grind of the black knob could prevent a bent adjuster shaft.

    Should i leave it? Should I grind it?

    Other Questions:
    Mine gets 110mm travel. Is the new bottom out bumper available from Manitou?
    Is it easy to install?

    What are you guys preferring: slow rebound to handle drops, jumps and chunky stuff or fast rebound to get it active for high speed runs?

    Untitled by avyoung, on Flickr
    Sent you PM also. Looking at a small 2017 and want to put on the mastadon. Did the thicker race work for you? Thanks.
    Dash Pt. State Park (Tacoma), Big Sky Montana during Snowboard Season, Duluth Mn, a couple of times of year incl. Xmas.

  22. #1422
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    Found another Wozo 2017 brand new in the shop. Made the deal on the bike and traded in the Bluto, got a Mastodon 120mm Comp EXT. The bigger Crown Race will be installed.

    Rode the 2019 Wozo for a test ride to see what the Mastodon would do. Far better than I thought possible.
    Dash Pt. State Park (Tacoma), Big Sky Montana during Snowboard Season, Duluth Mn, a couple of times of year incl. Xmas.

  23. #1423
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    Hi Bumpyride,

    The taller crown race takes care of the clearance issues on the small wozo. I have been running 140mm travel for a year now. I think I will pull it apart and set it to 150mm instead. Bike rides great with the mastodon. Enjoy your new ride!

    Quote Originally Posted by Bumpyride View Post
    Found another Wozo 2017 brand new in the shop. Made the deal on the bike and traded in the Bluto, got a Mastodon 120mm Comp EXT. The bigger Crown Race will be installed.

    Rode the 2019 Wozo for a test ride to see what the Mastodon would do. Far better than I thought possible.

  24. #1424
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    Quote Originally Posted by GspotRider View Post
    Hi Bumpyride,

    The taller crown race takes care of the clearance issues on the small wozo. I have been running 140mm travel for a year now. I think I will pull it apart and set it to 150mm instead. Bike rides great with the mastodon. Enjoy your new ride!
    Thanks. Reading through this whole thread helped me not make a mistake. Your 2017 small picture kind of sealed the deal. I looked at the 2019 and it was not the bike I wanted. It was, however, pretty insightful to ride the 2019 with the Mastodon and see what a difference in the ride it made.
    Dash Pt. State Park (Tacoma), Big Sky Montana during Snowboard Season, Duluth Mn, a couple of times of year incl. Xmas.

  25. #1425
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    Quote Originally Posted by Dougal View Post
    The EXT has longer internal shafts and cannot be lowered as far as the STD.

    The STD with spacers can do the same tyre size as the EXT, but loses 20mm of travel due to the shorter rods internally.
    The STD with spacers is 5.25" max tyres and 130mm max travel.
    The EXT can do 5.25" max tyres with 150mm max travel.
    I have been too busy to thank for the recommendations here, sorry for late reply!

    For me it needs to be a EXT, with pictures with spikes hitting the crown on the STD, it seems not possible to use STD.
    Since I am going to use a 120mm travel fork for the Pole Taiga, with the largest diameter tires out there in 27.5"x 4,5 including studs. Bontrager Barb and GnarWhale. Want also to have the Cake Eater 4.5 that is the same diameter as the 2XL Vee.

    So for me the choice of EXT/STD should not do any difference of AC since a modified STD will have same AC like EXT. STD AC length with 120mm travel will be 20mm+20mm= +40mm minus 20mm less AC length, AC length as exactly like EXT.

  26. #1426
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    Quote Originally Posted by Rumblefish2010 View Post
    I have been too busy to thank for the recommendations here, sorry for late reply!

    For me it needs to be a EXT, with pictures with spikes hitting the crown on the STD, it seems not possible to use STD.
    Since I am going to use a 120mm travel fork for the Pole Taiga, with the largest diameter tires out there in 27.5"x 4,5 including studs. Bontrager Barb and GnarWhale. Want also to have the Cake Eater 4.5 that is the same diameter as the 2XL Vee.

    So for me the choice of EXT/STD should not do any difference of AC since a modified STD will have same AC like EXT. STD AC length with 120mm travel will be 20mm+20mm= +40mm minus 20mm less AC length, AC length as exactly like EXT.
    The addition of spacers in the STD will stop the spikes hitting the crown. With 2x10mm spacers in each side it has the same clearance as the EXT.

    A-C will be dictated by clearance and travel.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  27. #1427
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    Quote Originally Posted by Dougal View Post
    The addition of spacers in the STD will stop the spikes hitting the crown. With 2x10mm spacers in each side it has the same clearance as the EXT.

    A-C will be dictated by clearance and travel.
    Yes so my calculation is for a STD fork:
    Increased clearance +20mm
    Reduced travel -20mm (from 120 to 100mm
    Increased travel +20mm
    =Total increased AC lengt +20mm

    Is that not exactly the difference in EXT and STD AC length?

  28. #1428
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    So.....now that my mastodon has been sold, I figured I would take a moment here to share some thoughts

    I ran a pro std 120 in 29+ mode with no internal mods on a FS Waltworks

    Just wanted to say that I loved the fork and HIGHLY recommend it if you are in the market for a fat fork.

    It never felt heavy, I could lift it and wheelie with ease. And it behaved like any fine piece of equipment should.

    Just get one!

  29. #1429
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    I read that there's a new Mastodon Pro with IRT but don't see anyone selling it yet. I wonder will Manitou sell IRT upgrade separately?

  30. #1430
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    Quote Originally Posted by Mebaru View Post
    I read that there's a new Mastodon Pro with IRT but don't see anyone selling it yet. I wonder will Manitou sell IRT upgrade separately?
    The IRT unit is sold separately, so just buy it and put it on the fork. It is around 60USD.

  31. #1431
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    Quote Originally Posted by Rumblefish2010 View Post
    The IRT unit is sold separately, so just buy it and put it on the fork. It is around 60USD.
    As far as I know earlier IRT was sold only for Mattoc forks. I have contacted Manitou a year ago if I can put IRT into my Mastodon and they replied they aren't compatible.

  32. #1432
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    Iím running an IRT in both of my Mastodon forks as well as my Mattoc. I love the tuning options and the benefits to both are similar. They are definitely compatible. Itís odd Manitou would say itís not, maybe the CS did not know when the Mastodon first came out?

  33. #1433
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    Quote Originally Posted by Aresab View Post
    Iím running an IRT in both of my Mastodon forks as well as my Mattoc. I love the tuning options and the benefits to both are similar. They are definitely compatible. Itís odd Manitou would say itís not, maybe the CS did not know when the Mastodon first came out?
    I have used on three different Mastodon forks, so that is wrong. They fit. It is the IRT for Mattoc Expert, you can see it here:
    https://www.bike24.com/p2172736.html?q=irt

    You will even see en the bottom of these page on Manitou site, that it is Setup guide for Mattoc and Mastodon.
    https://manitoumtb.com/product/mrd-irt/?cat_id=26

  34. #1434
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    Ok, great. So you guys can confirm that Mattoc IRT can be installed ninto Mastodon Pro fork?

  35. #1435
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    Quote Originally Posted by Mebaru View Post
    Ok, great. So you guys can confirm that Mattoc IRT can be installed ninto Mastodon Pro fork?
    Check here it says "Mattoc/Mastodon IRT Set-up Guide" on the IRT web page for Manitou, so yes for the secon time I can confirm that is possible to install it and I have done so for 3 different Mastodon Pro forks.

    See link https://manitoumtb.com/product/mrd-irt/?cat_id=26

  36. #1436
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    Quote Originally Posted by Rumblefish2010 View Post
    Check here it says "Mattoc/Mastodon IRT Set-up Guide" on the IRT web page for Manitou, so yes for the secon time I can confirm that is possible to install it and I have done so for 3 different Mastodon Pro forks.

    See link https://manitoumtb.com/product/mrd-irt/?cat_id=26
    Ok, thanks.

    They have updated their website recently. Previously, there was no mention about Mastodon forks. In the product description it still doesn't have Mastodon listed: " This tool is compatible with the following fork models: ē Mattoc Pro 2 ē Mattoc Pro ē Mattoc Expert ē Doradro Pro ē Dorado Expert Trail"

    Yeah, I know that Mastodon is basically is fat version of Mattoc 2 fork...

  37. #1437
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    Regarding IRT. There are two different stanchion internal diameters.

    Pro models and Comp models. Comp models are smaller ID due to thicker stanchion walls due to softer 6000 series aluminium stanchions.

    Mattoc Pro & Expert used the same stanchions with same ID since the start and IRT screws straight into those.

    I have not yet tried to fit IRT into a Mastodon. I would try it but I'm currently out of Mastodon stock. Given @Rumblefish2010 and @Aresab have run it, it is clear they fit and work.

    Standard caution for IRT: Make sure the shaft is greased during install, or the seal inside the IRT piston wears out quickly.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  38. #1438
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    Has anyone found a tool-less axle setup for the Mastadon?

    ac

  39. #1439
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    Anyone else have a problem setting the SAG on an EXT Comp model. Was really hard to fine tune. Finally got it to about 20%, but it took about 20 times with the fork pump to get it there.
    Dash Pt. State Park (Tacoma), Big Sky Montana during Snowboard Season, Duluth Mn, a couple of times of year incl. Xmas.

  40. #1440
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    Quote Originally Posted by avc8130 View Post
    Has anyone found a tool-less axle setup for the Mastadon?

    ac
    since the mastodon axle is a proprietary design, you will have to go custom if yoou want a tool less front axle.

  41. #1441
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    Quote Originally Posted by Dougal View Post
    Regarding IRT. There are two different stanchion internal diameters.

    Pro models and Comp models. Comp models are smaller ID due to thicker stanchion walls due to softer 6000 series aluminium stanchions.

    Mattoc Pro & Expert used the same stanchions with same ID since the start and IRT screws straight into those.

    I have not yet tried to fit IRT into a Mastodon. I would try it but I'm currently out of Mastodon stock. Given @Rumblefish2010 and @Aresab have run it, it is clear they fit and work.

    Standard caution for IRT: Make sure the shaft is greased during install, or the seal inside the IRT piston wears out quickly.
    I had an IRT installed on my Mastodon Comp by the swedish dealer. It took me a long time to understand that the extra chamber was leaking into the main positive chamber. The guy had swapped the lower piston to one of an IVA which should in theory work since both shafts are 10mm but it doesn't...

  42. #1442
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    My Mastodon has a click noise on the rebound stroke, it is not at top out but just when the fork changes direction from compression to rebound. Any idea what it could originate from?

  43. #1443
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    Quote Originally Posted by HappyMTB.fr View Post
    My Mastodon has a click noise on the rebound stroke, it is not at top out but just when the fork changes direction from compression to rebound. Any idea what it could originate from?
    Have you checked the oil level? Might be the cause. My mechanic said it is very sensitive to the exact volume of oil and that he had to do a quick adjustment to most of the Mastodons that they've sold.

  44. #1444
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    Thanks @canmoreBruce!
    I will check that

  45. #1445
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    Does a carbon Farley require a spacer or different adjuster nob to clear the non pro mastodon? Thanks

  46. #1446
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    Quote Originally Posted by Saskrider View Post
    Does a carbon Farley require a spacer or different adjuster nob to clear the non pro mastodon? Thanks
    Mine did. About a 3mm spacer below the crown race.

  47. #1447
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    Quote Originally Posted by Hobine View Post
    Mine did. About a 3mm spacer below the crown race.
    Thanks! Which spacer did you use that's compatible with the factory headset

  48. #1448
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    Can anyone confirm if swapping for the circus adjuster allows the mastodon to clear a carbon Farley frame? Heard it once on this thread to clear a different bike and no one has mentioned it since. Thanks

  49. #1449
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    Quote Originally Posted by Saskrider View Post
    Thanks! Which spacer did you use that's compatible with the factory headset
    I had some bottom bracket spacers on hand that were the correct size. I believe they are BB30.

  50. #1450
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    Quote Originally Posted by Saskrider View Post
    Thanks! Which spacer did you use that's compatible with the factory headset
    You can try one of these:

    Cane Creek 40-series crown race (52/40) steel, 1.5" (+6mm)

    They also make it in 3mm
    RICOH for LIFE
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  51. #1451
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    This one comes in whatever size you need.

    https://www.mtbtools.com/product/ext...ork-clearance/


    Sent from my SM-G960U1 using Tapatalk

  52. #1452
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    Quote Originally Posted by CanmoreBruce View Post
    Have you checked the oil level? Might be the cause. My mechanic said it is very sensitive to the exact volume of oil and that he had to do a quick adjustment to most of the Mastodons that they've sold.
    You were bang on! My oil level was 10mm too low. Thanks again!

  53. #1453
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    Quote Originally Posted by akgrimace View Post
    This one comes in whatever size you need.

    https://www.mtbtools.com/product/ext...ork-clearance/


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    Thank you, you dont happen to know how many mm I need to clear a large carbon Farley frame?

  54. #1454
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    Quote Originally Posted by majack View Post
    You can try one of these:

    Cane Creek 40-series crown race (52/40) steel, 1.5" (+6mm)

    They also make it in 3mm
    Pretty sure I just need a 3mm on a large carbon farley, can you confirm? Thanks

  55. #1455
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    Quote Originally Posted by Saskrider View Post
    Thank you, you dont happen to know how many mm I need to clear a large carbon Farley frame?
    I have a different frame. Once I had the fork, I mocked it up, measured, and had the spacer a week later.

    Sent from my SM-G960U1 using Tapatalk

  56. #1456
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    Quote Originally Posted by akgrimace View Post
    I have a different frame. Once I had the fork, I mocked it up, measured, and had the spacer a week later.

    Sent from my SM-G960U1 using Tapatalk
    I agree that's the best way but ill be waiting 3+ weeks for q part like that in Canada so going to confirm so I can have it waiting for the fork thanks

  57. #1457
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    At the bottom of this really long webpage is a procedure for measuring your frame.

    https://www.ridefatbikes.ca/2018-fat...-fork-shootout


    Sent from my SM-G960U1 using Tapatalk

  58. #1458
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    ^before I go measuring: I suspect that a 2016 Salsa Mukluk frame (size XL) does not clear the Mastodon fork. Could someone prove me wrong

  59. #1459
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    Mastodon Pro STD 120mm on my 2015 Salsa Beargrease 2 (aluminum).

    Fits perfectly, clears the downtube with ease. Makes for a pretty slack bike. Riding impressions soon.


  60. #1460
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    Quote Originally Posted by FireinMTB View Post
    Mastodon Pro STD 120mm on my 2015 Salsa Beargrease 2 (aluminum).

    Fits perfectly, clears the downtube with ease. Makes for a pretty slack bike. Riding impressions soon.

    Looks good. And I agree that is fixes the geo a bit!

  61. #1461
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    Just received a Mastodon Pro 120 Ext from CRC for my Voytek. Looking forward to seeing how it changes the ride. Also considering experimenting with 27.5 Fat.

    Currently running the Otso rigid carbon fork.

  62. #1462
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    Quote Originally Posted by kyttyra View Post
    ^before I go measuring: I suspect that a 2016 Salsa Mukluk frame (size XL) does not clear the Mastodon fork. Could someone prove me wrong
    No clearance issues on my 2018 XL carbon frame. I think thatís the same Mukluk design as 2016...I think...???

  63. #1463
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    Quote Originally Posted by carbine_275 View Post
    Just received a Mastodon Pro 120 Ext from CRC for my Voytek. Looking forward to seeing how it changes the ride. Also considering experimenting with 27.5 Fat.

    Currently running the Otso rigid carbon fork.
    I like mine on my Voytek. I went with the Std. It clears 29+ just fine. No plans yet for B-Fat. I have too much invested in 26 tires and wheels.

  64. #1464
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    Quote Originally Posted by bikedrd View Post
    Looks good. And I agree that is fixes the geo a bit!
    Thanks man. By my calculations it should put the head angle in the 67.5 range, considering with a 100mm bluto (sagged) it's supposed to be at 68.5.

    Also makes the rear end feel shorter making it super easy to pop into a manual now, and raises the BB height which was a touch low for trail riding.

    win/win/win and this is now my favorite trail bike. It just friggin' eats everything, and the handling is much improved over the rigid setup.

    very happy with this. If you are on the fence about this fork, just get one, you won't be disappointed.

  65. #1465
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    So guys, I've been riding faster than last year when I got this beast and I need to make the suspension more progressive. Am I correct that removing the spacers from the bottom of the IVA and putting them on top will achieve this? I'm running the 100mm Pro Ext, so it came with 2 on top and 2 below. I moved one (more) above for now and pumped the fork up to the same pressure. Quick ride in the driveway didn't show much difference but I haven't had time to dial it in yet. I had two harsh bottom outs on landings on Monday and so I'm looking to tweak the performance.

  66. #1466
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    Can a 203mm rotor be fitted to this fork? I know it will need a spacer but I can't find a maximum size listed, I've emailed Hayes but have had no reply. TIA

    EDIT - found it!
    Attached Thumbnails Attached Thumbnails Manitou Mastodon?-capture.jpg  

    What a perfect waste of time

  67. #1467
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    Quote Originally Posted by JackWare View Post
    Can a 203mm rotor be fitted to this fork? I know it will need a spacer but I can't find a maximum size listed, I've emailed Hayes but have had no reply. TIA
    Yes, you can with adapter. I have 203mm rotor on my Mastodon Pro.

  68. #1468
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    For Info;

    To change from a Mastodon Comp from 120mm to 140mm you don't need the large 24mm socket, thin walled 8mm long socket or the cut cassette tool.

    The official guide is very good and Hayes have published lots of info but I found that a standard Unior 1670.5/4 cassette tool slides over the air spring shaft perfectly once you've removed the lower spacer(s) as shown below.

    I left the forks on the bike and simply inverted the bike and wrapped a lot of old cloths around the top (now bottom) of the forks to catch the oil as I slide the lowers off.

    I undid the air valve side using a standard 8mm socket to begin with and then a 4mm allen key gently pressed in the the valve head (which is an internal hex).

    Once the spacers have been removed as per the instructions, the fork lowers slid back on and oil added, the only fiddly part was starting the thread again on the air value side, as using the allen key initially isn't possible as you release the air pressure. I used a pair or pliers to gently grip the thread and turn through 180' - just enough for the thread to engage and allow the use of the allen key to tighten it.

    A pair of adjustable grips was used to loosen the IVA and then it can be unscrewed by hand, (while the system is depressurized).

    When moving the spacer in the IVA beware of the two very thin washers below piston and ensure they don't get trapped and distorted when adding the spacer below it.

    A good evening's work (and a lot cheaper than I'd initially expected).

    For info the Mastodon docs are here;


    https://manitoumtb.com/wp-content/up...vice-Guide.pdf

    https://manitoumtb.com/wp-content/up...ange-Guide.pdf

    https://manitoumtb.com/wp-content/up...etup-Guide.pdf
    Attached Thumbnails Attached Thumbnails Manitou Mastodon?-img_20190703_205255.jpg  

    Last edited by JackWare; 07-12-2019 at 04:11 AM.
    What a perfect waste of time

  69. #1469
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    I need help with my new fork. I got the 120mm std Comp version and the shop set the sag up for me, however since Iím heavy (365lbs] I was only able to have them get me around 33-35% sag with stock fork settings. They ended up inflating the fork to 150psi although the max pressure is 120psi.

    I played with more settings including maxing the rebound and changing the IVA from 1 spacer above, 3 below to all 4 above to hopefully make the fork more progressive. When I reinflated the fork I didnít go past max psi and as a result I didnít notice much decrease in sag.

    Wanted to get some recommendations on where I should be going to hopefully dial this fork in better for my weight.

  70. #1470
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    Have you reached out to Manitou?
    Jason
    Disclaimer: www.paramountfargo.com

  71. #1471
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    Quote Originally Posted by JAGI410 View Post
    Have you reached out to Manitou?
    Nope. Only had the bike with the fork installed for a day. Plus Iím now just assuming itís one of those things where Iím just too heavy and the fork wasnít specifically rated for my weight anyway so Iím SOL on that end.

  72. #1472
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    Mastodon COMP will fit the IRT unit BUT you have to swap the pistons first. Basically you put the IVA unit black piston onto the IRT unit assembly reassemble screw into fork.
    Last edited by Phiu-x; 07-24-2019 at 10:26 AM. Reason: info

  73. #1473
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    Quote Originally Posted by Mebaru View Post
    Ok, great. So you guys can confirm that Mattoc IRT can be installed ninto Mastodon Pro fork?
    Mastodon COMP : Yes but has to swap piston and use the black one from the IVA unit.
    Mastodon PRO: Direct fit.

  74. #1474
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    Quote Originally Posted by HappyMTB.fr View Post
    I had an IRT installed on my Mastodon Comp by the swedish dealer. It took me a long time to understand that the extra chamber was leaking into the main positive chamber. The guy had swapped the lower piston to one of an IVA which should in theory work since both shafts are 10mm but it doesn't...
    Quote Originally Posted by Phiu-x View Post
    Mastodon COMP : Yes but has to swap piston and use the black one from the IVA unit.
    Mastodon PRO: Direct fit.
    So you haven't experienced the same issue as HappyMTB whose dealer did the same conversion?
    What a perfect waste of time

  75. #1475
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    Two things to note:

    1. If you install an IRT system without greasing the shaft, it wears out the oring inside the piston very quickly. Result is leaks from the IRT chamber to main chamber.

    2. Static seals can have very different crush requirements to dynamic seals. I haven't checked the IVA pistons to see if the seal groove dimensions are suitable for a moving seal.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  76. #1476
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    I put a major amount of grease onto the shaft , piston and thread of the IRT unit as per manufacturer advice before installing it. After 2 days riding it I don't have any leak... that I can feel .. yet. I will keep an eye out for this particular problem ans post here if any issue arise with this mod.

  77. #1477
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    All I can say is that I pumped IRT from 100 up to 200 psi and the spring effect is there this piston keeping air and moving.But thanks, I will keep an eye out for this.

  78. #1478
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    Had the Pro extended out to 140mm.Doesnt change the ride or handling,but nice to have a bit of extra squish when the trails are rough.Rode a downhill trail last week and it handled very wellManitou Mastodon?-68878111_10156334946407401_5373202115353116672_n.jpg

  79. #1479
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    @bikemad1

    Where did you get the kashima-coating ?

    Regards

    Christian

  80. #1480
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    Quote Originally Posted by KTMNealio View Post
    It's a motobecane frame. But I greased the ends of the hub and torqued the axle down and it quit making that noise.
    Same issue different bike. Same fix. Thanks.


    Sent from my SM-G960U1 using Tapatalk

  81. #1481
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    Quote Originally Posted by ChristianNO View Post
    @bikemad1

    Where did you get the kashima-coating ?

    Regards

    Christian
    That's not Kashima(tm) it's natural coloured hard anodising. It's what almost all stanchions were before fashion dictated they be dyed black during anodising.

    That will be an OEM spec fork as all aftermarket Mastodon's have black stanchions.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  82. #1482
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    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  83. #1483
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    Hi

    Where is it possible to buy the Mastodon Pro Ext with 150mm Travel ??

    Regards

    Christian

  84. #1484
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    Quote Originally Posted by Dougal View Post
    Is that the lucrative 1 1/8" steerer CSU I've read about?!?! tempting option for silly Pugsley owners like myself.
    Silly bike things happening.

  85. #1485
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    Quote Originally Posted by Redlands R&C View Post
    Is that the lucrative 1 1/8" steerer CSU I've read about?!?! tempting option for silly Pugsley owners like myself.
    Yep, we're doing them as a custom build option.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  86. #1486
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    So I just had mine serviced.The suspension dude used fox 34 2019 seals-and the fork feels better than when I first got it!

  87. #1487
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    Quote Originally Posted by bikemad1 View Post
    So I just had mine serviced.The suspension dude used fox 34 2019 seals-and the fork feels better than when I first got it!
    They're a downgrade in friction over the stock seals. Especially in the cold. The fork will feel better now because it's broken in and recently serviced.

    The SKF green seals are better than the Fox SKF. The stock Mastodon seals are better again.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  88. #1488
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    Quote Originally Posted by ChristianNO View Post
    Hi

    Where is it possible to buy the Mastodon Pro Ext with 150mm Travel ??

    Regards

    Christian
    They only come on OEM bikes so maybe a used take off.....? However I haven't every seen one for sale. Another option you know may or may not know about is the 120mm version is easy to change the travel to 140mm. Google it if your unfamiliar with this option.

    Sent from my SAMSUNG-SM-N915A using Tapatalk
    Last edited by bplaizier; 09-29-2019 at 06:20 AM.

  89. #1489
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    I recently had my Mastodon serviced and the guy used fox 34 seals like the fellah a few posts up.Waay smoother than the previous manitou seals.I have the Pro extended out to 140 and rode it recently on some flow and down hill trails in Cairns,in the north queensland tropics.It is So much better now buttery smooth

  90. #1490
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    Just finished installing a Mastodon STD Comp 120mm on a 2016 alloy Specialized Fatboy. I was initially a little worried about clearance of the crown, and tire clearance for wide tires, and wished there was an example of my bike on this forum. Well, now there's an example...

    I can confirm that it fit just fine in terms for crown clearance. The knob on the Comp model seems to have been redesigned from the pictures I was seeing earlier, and it's lower profile. The fork also clears 26x4.8 Minion FBF on Sun Mulefut 74mm inner width (by "clears" I mean: with all the air out of the fork, at full compression, there's still about 8-10mm clearance).

    One small problem I had during install: I thought I'd be able to pull the crown race off my carbon Chisel fork (the stock one for the Fatboy). I couldn't get the race off, and neither could the bike shop. It looks like it's epoxied on or something. Anyway, not too big of a deal to source an extra crown race.

    I've only had time to ride it on the street in front of my house, but the bike feels much better landing with a suspension fork than it did fully rigid. Can't wait to get out and ride it.

  91. #1491
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    I bought a 120MM standard comp model for my wife's fatty, it's a bit heavier than my pro but it's not terrible. I did notice the compression knob has been redesigned to be lower in profile and now has 3 positions rather than 12 or so clicks. Is there any way to put an AB+ knob to gain finer control over the 3 position?

    I'm looking forward to putting it on the bike for her next ride with me. Should be a good upgrade over her current charger based Bluto.

  92. #1492
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    Quote Originally Posted by Aresab View Post
    I bought a 120MM standard comp model for my wife's fatty, it's a bit heavier than my pro but it's not terrible. I did notice the compression knob has been redesigned to be lower in profile and now has 3 positions rather than 12 or so clicks. Is there any way to put an AB+ knob to gain finer control over the 3 position?

    I'm looking forward to putting it on the bike for her next ride with me. Should be a good upgrade over her current charger based Bluto.
    The Comp model only has 3 clicks.
    It has a different damper than the Pro model...which has both high and low compression adjustment.
    The Comp works fine as it is.
    And no...you can't swap dampers.

  93. #1493
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    Thanks for your reply but that was not my question; it was only the knob (meant ABS+) and not the damper. I have 2 Mastodon Pros and a few Mattocs Pros and am aware that the comp has a different diameter stanchion & damper from the pro. The first version of the Comp had ABS+ which had a red knob like my old Manitou Minutes, I believe it had many positions but have not had a 34mm model to verify. The second version appears to be a running change and is not on the Manitou Website yet (or in photos); they list ABS+. The newer knob is lower profile and black where most photos that I've seen are red. I did ask a similar question in the Mattoc thread on the suspension forum and Mullen119 responded earlier. The newer comps are 3-position like you describe but with a VTT damper, ABS+ based but different. I believe the Mattoc comps now use this damper too. For anyone who wants the info I pasted it below and it's post #4839 in the Mattoc thread.

    I spent a few months on it when it was in development. Its pretty good, just not as adjustable as the ABS+

    It has 3 flow paths for oil and works like this:

    Full open mode has a oil LSC circuit and HSC shim stack that flow oil. Its very supple in this mode.

    In the middle setting, a plunger is pushed down and blocks flow through the low speed circuit and runs only through the HSC shim stack. The main shim stack is linear (not preloaded) so it can flow oil pretty quickly with no real platform. This is supportive without being too harsh. You do lose some small bump sensitivity though. I used this setting most of the time.

    The lock out setting drops the plunger further and blocks flow to the main HSC shim stack. It redirects it to a secondary shim circuit that is highly preloaded that gives a very firm lock out. I personally never needed the lock out, but some people love having it.

    Overall, its a solid damper. I like the abs+ better because its more adjustable and I don't care about the lock out. I did make a modification to one of my vvt dampers I was testing that made it a little better. It involves using a file to flatten a small part of the plunger to allow a little bit of oil to flow through the low speed circuit in the "trail" setting. This allowed for increased support with better small bump sensitivity. As more VTT dampers make their way to the public, I may post how to do it on here. That assumes enough people complain about the stock damper to justify it.

  94. #1494
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    What is the VTT damper? Where did the italic text come from?

  95. #1495
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    See the above post "For anyone who wants the info I pasted it below and it's post #4839 in the Mattoc thread". The Mattoc thread (49 pages) is in the suspension forum on MTBR. I had asked a similar question there since that thread gets a lot of traffic and there are quite a bit of similarities between the Mattocs and Mastodons; I have both. The VTT is the newer damper, I guess they are phasing out ABS+. The one who responded with the text that I put in italics is Mullen119, he tests Manitou Products for them and has contact with their engineering.

    The link to the Mattoc thread is here : https://forums.mtbr.com/shocks-suspe...899836-49.html

  96. #1496
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    Have things changed with the tire clearances on the comp models? Just finished putting together a bike spec'd with a 100 comp fork (so the spec's say), but I've got huge tire clearance from the arch with a Bud mounted on a Mulefut. There's upwards of 120 mm between the top of the nobs and the bottom of the crow. Looking at this pic (below) and some of the early ones from initial release, there seems to be a ton more room. I was planning on doing Dougal's spacer/travel reducer fix to clear a Bud, but this doesn't seem necessary. FYI - on a new El OSO tres.Manitou Mastodon?-img_20200116_112921058.jpg
    I would advise not taking my advice.

  97. #1497
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    Quote Originally Posted by watermonkey View Post
    Have things changed with the tire clearances on the comp models? Just finished putting together a bike spec'd with a 100 comp fork (so the spec's say), but I've got huge tire clearance from the arch with a Bud mounted on a Mulefut. There's upwards of 120 mm between the top of the nobs and the bottom of the crow. Looking at this pic (below) and some of the early ones from initial release, there seems to be a ton more room. I was planning on doing Dougal's spacer/travel reducer fix to clear a Bud, but this doesn't seem necessary. FYI - on a new El OSO tres.Click image for larger version. 

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    You can pull the lower legs and measure the travel from stanchion end-cap to bumpers. Might be worth checking if your fork is indeed set at 100mm.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  98. #1498
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    Quote Originally Posted by watermonkey View Post
    Have things changed with the tire clearances on the comp models? Just finished putting together a bike spec'd with a 100 comp fork (so the spec's say), but I've got huge tire clearance from the arch with a Bud mounted on a Mulefut. There's upwards of 120 mm between the top of the nobs and the bottom of the crow. Looking at this pic (below) and some of the early ones from initial release, there seems to be a ton more room. I was planning on doing Dougal's spacer/travel reducer fix to clear a Bud, but this doesn't seem necessary. FYI - on a new El OSO tres.
    It's not clear on the Diamonback website, but the fork on the El Oso Tres is the extended version of the comp. While it's still a 100mm fork, there is more room to fit 5" tires, so it has the same crown to axle measurement as the 120mm fork.

  99. #1499
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    Would one of you kind folks that have a mastodon 120 pro standard version tell me how long your brake line is? I am in the process of building up my bike and am using the carbon fixed fork right now and won't be getting a mastodon for 4 or 5 months. Would like to use this brake line for both forks. Also do you think a 120 pro standard will work with terrene johnny 5 tires? Or would you go with the extended fork?

  100. #1500
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    What oil are you guys using for the comp damper for winter summer use.
    I have looked in the online manual and they say standard is 3 wt and 5 wt is optional. I am quite happy with the performance of my fork the way it is. the only 3 wt synthetic I could source was Maxima shock fluid 3wt. Have the Manitaou semi bath oil, I am assuming this correct. I am doing my first service and just want to make sure I am using the right stuff.
    Thanks in advance!

  101. #1501
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    Quote Originally Posted by Blaster182 View Post
    What oil are you guys using for the comp damper for winter summer use.
    I have looked in the online manual and they say standard is 3 wt and 5 wt is optional. I am quite happy with the performance of my fork the way it is. the only 3 wt synthetic I could source was Maxima shock fluid 3wt. Have the Manitaou semi bath oil, I am assuming this correct. I am doing my first service and just want to make sure I am using the right stuff.
    Thanks in advance!
    Factory damper oils are a blue 5wt Maxima for general use and a clear fully synthetic Maxima SYN RSF 3wt for very cold conditions.


    The red Maxima 3wt didn't meet the cold condition performance.

    Manitou 5W40 Semi-Bath is good for the cold.

    I use Motorex fluids instead, but the above are factory fills.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  102. #1502
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    Thanks for the reply,
    Went with the Motorex 5wt.

  103. #1503
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    Sorry if this been answered, but I just got a 2018 Farley 7 and the compression knob doesn't clear the downtube.
    Has anyone found a thinner/low-profile knob that fits? (I don't want to grind it down or install a thicker crown race.)
    I Contacted Hayes and they donít make a lower profile knob.

  104. #1504
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    Quote Originally Posted by Blaster182 View Post
    Thanks for the reply,
    Went with the Motorex 5wt.
    For Motorex use 2.5wt. It is the same viscosity (15 cSt @ 40C) as the Maxima 3wt and 5wt. Because for some weird reason European and American companies use those grades differently.

    Motorex 2.5wt is better in the normal cold (tested to 0C) than the Maxima 5wt and equal to the 3wt.
    I haven't tested them in the super cold (-15C).
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  105. #1505
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    Quote Originally Posted by Dougal View Post
    I haven't tested them in the super cold (-15C).
    I remember reading somewhere for arctic winter you could use Motorex Snowmobile Polar Synt 4T 0W/40 for lower legs semi-bath, is that right?

  106. #1506
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    Quote Originally Posted by TheConsul View Post
    I remember reading somewhere for arctic winter you could use Motorex Snowmobile Polar Synt 4T 0W/40 for lower legs semi-bath, is that right?
    Yes. I have that as Polar 0W40. Works great for making your fork think it's summer: https://www.shockcraft.co.nz/polar-s...c-motorex.html
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  107. #1507
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    Where can you buy a new 150mm travel Mastodon?

  108. #1508
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    Quote Originally Posted by kntr View Post
    Where can you buy a new 150mm travel Mastodon?
    My understanding it is OEM only so you have to buy a bike that comes with it.

    Or get lucky and find someone that is selling one.

  109. #1509
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    Quote Originally Posted by kntr View Post
    Where can you buy a new 150mm travel Mastodon?
    From me: https://www.shockcraft.co.nz/manitou...nitou-mastodon

    I will also have EXT versions available for special order.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  110. #1510
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    Quote Originally Posted by Dougal View Post
    From me: https://www.shockcraft.co.nz/manitou...nitou-mastodon

    I will also have EXT versions available for special order.
    Where in the world did you get those!

    I thought the 150mm was OEM only

  111. #1511
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    Quote Originally Posted by KenPsz View Post
    Where in the world did you get those!

    I thought the 150mm was OEM only
    We try a bit harder than your average distributor. You'll see we have the straight steerer options too.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  112. #1512
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    What pressure should I have on my Mastodon with IRT? I find 80psi in main chamber and 130 in the IRT feels harsh. When going to 120 in IRT I feel the fork behaves better, but sinks into travel a bit to much, and I bottom out to easy.
    Going less in main chamber does not feel better at all either, only gives more sag and the fork hits the compressed stroke to fast.

    I am trying to compensate with LSC at 2 from open, but even then it starts to feel not so good. Tried 1 click at HSC, but that got not good at all? My impression is that the damper starts to choke to fast, and makes the fork feel bad?

    My weight is 115kg/ 255 lbs.

  113. #1513
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    Have you tried 100psi in the main with 120 in the IRT? Looking at the Manitou guide 80psi looks too low for your weight.
    Just make sure you keep the IRT at 10psi more than the main chamber.


    Manitou Mastodon?-annotation-2020-03-18-154523.jpg
    What a perfect waste of time

  114. #1514
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    No but I did have about 100psi when I did not have IRT. Actually I felt that the fork felt better without IRT.


    Quote Originally Posted by JackWare View Post
    Have you tried 100psi in the main with 120 in the IRT? Looking at the Manitou guide 80psi looks too low for your weight.
    Just make sure you keep the IRT at 10psi more than the main chamber.


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  115. #1515
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    Quote Originally Posted by Rumblefish2010 View Post
    What pressure should I have on my Mastodon with IRT? I find 80psi in main chamber and 130 in the IRT feels harsh. When going to 120 in IRT I feel the fork behaves better, but sinks into travel a bit to much, and I bottom out to easy.
    Going less in main chamber does not feel better at all either, only gives more sag and the fork hits the compressed stroke to fast.

    I am trying to compensate with LSC at 2 from open, but even then it starts to feel not so good. Tried 1 click at HSC, but that got not good at all? My impression is that the damper starts to choke to fast, and makes the fork feel bad?

    My weight is 115kg/ 255 lbs.
    IMO the best IRT range is from 1.5 to 2x your main chamber pressure. So you're in the ballpark.

    Even 5psi changes can be huge when you get close to a working setup.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  116. #1516
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    Hello
    I just found a very good offer for a new Comp 140 EXT.
    Can I lower it to 120 and transform to a STD version?
    Problem is that axle to crown is too high.
    I would do the spacer travel change form 140 to 120 but is not enough..fork is still too long anyway..
    Looking at the Manitou travel change guide and spare part list, it does look that I can buy a new AIR SPRING ASSEMBLY STD version and reduce even more the overall a to c length...This way I would get a STD axle to crown length out of a native EXT fork.
    Is that correct?
    thanks a lot

  117. #1517
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    Quote Originally Posted by Dougal View Post
    IMO the best IRT range is from 1.5 to 2x your main chamber pressure. So you're in the ballpark.

    Even 5psi changes can be huge when you get close to a working setup.
    Since my old Mastodon was having pretty much play in the bushings, I got a new fork on warranty.

    Found out that the IRT does not fit, and measured that the threads are 1 mm less diameter then the previous?

    Tested the fork without and it seems pretty difficult to get it to feel right. At my weight I should have 100 psi, that makes the fork just bouncing around. At 90 psi the fork feels better in the initial stroke, but when pushed hard it ramps up and gives tremendous arm pump.

    Trying to adjust the rebound as fast as possible when using less air pressure to get it to stay high in travel.

    Use of LSC is only giving the fork even more harsh feel, and even more arm pump. HSC is even worse.....

    Today I got 3 sudden noises of metal that could be heard like something was braking.
    It came to my mind that I have had this on previous Mastodon forks, that have been moving the tube inside the crown?

    Just starting to get pretty bad feeling of these forks now......

  118. #1518
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    Sorry if this is buried in this thread somewhere, but can someone tell me how the forks are out of the box? I've ordered a 120 STD Pro, and I'm wondering how oil levels and grease are from the factory.

    Also, how common is the steerer tube not being pressed all the way in?

    Thanks!

  119. #1519
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    Quote Originally Posted by Shinkers View Post
    Sorry if this is buried in this thread somewhere, but can someone tell me how the forks are out of the box? I've ordered a 120 STD Pro, and I'm wondering how oil levels and grease are from the factory.

    Also, how common is the steerer tube not being pressed all the way in?

    Thanks!
    Pretty sure the steer tube issue was resolved after the first batch came out.
    No problems with mine after getting it back and they replaced the upper under warranty.

    Sent from my SM-G960U using Tapatalk

  120. #1520
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    Any idea on the oil levels?

  121. #1521
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    Quote Originally Posted by Shinkers View Post
    Any idea on the oil levels?
    Oil levels are good to go. Same with the steerer tubes, that was sorted as soon as it was known about.
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  122. #1522
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    Quote Originally Posted by Rumblefish2010 View Post
    Since my old Mastodon was having pretty much play in the bushings, I got a new fork on warranty.

    Found out that the IRT does not fit, and measured that the threads are 1 mm less diameter then the previous?

    Tested the fork without and it seems pretty difficult to get it to feel right. At my weight I should have 100 psi, that makes the fork just bouncing around. At 90 psi the fork feels better in the initial stroke, but when pushed hard it ramps up and gives tremendous arm pump.

    Trying to adjust the rebound as fast as possible when using less air pressure to get it to stay high in travel.

    Use of LSC is only giving the fork even more harsh feel, and even more arm pump. HSC is even worse.....

    Today I got 3 sudden noises of metal that could be heard like something was braking.
    It came to my mind that I have had this on previous Mastodon forks, that have been moving the tube inside the crown?

    Just starting to get pretty bad feeling of these forks now......
    There is a new IRT with finer threads to fit these, the circus Pro and a few others. It is distinguished by a recessed cap with cassette tool fitment instead of external hex:

    https://www.shockcraft.co.nz/mattoc-...0-manitou.html

    Turns out we haven't got the picture up yet. But we do now have multi-currency so you guys can view prices in currencies that make sense.

    Can you isolate that noise? What issue did you have with the previous forks?
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  123. #1523
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    Hey Dougal, I didn't know if you'd answer my PM which is why I posted here at the same time. I appreciate you getting back to me!

    Here's one more question (and I'm sorry to keep hammering on the steerer thing): I got my fork today and noticed the mfg date is April 12, 2018. I wasn't expecting the fork to be two years old. That's fine, but was this before or after the steerer problem was dealt with?

    My steerer does seem to sit proud of the crown like basically all of the mastodons that I've seen in person.

    The initial feel of the fork is good, but it's not quite as smooth as my (broken in) Marz Bomber Z1. I guess time will tell if it smooths out to the same level.

    Thanks again for the help.

  124. #1524
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    Quote Originally Posted by Shinkers View Post
    Hey Dougal, I didn't know if you'd answer my PM which is why I posted here at the same time. I appreciate you getting back to me!

    Here's one more question (and I'm sorry to keep hammering on the steerer thing): I got my fork today and noticed the mfg date is April 12, 2018. I wasn't expecting the fork to be two years old. That's fine, but was this before or after the steerer problem was dealt with?

    My steerer does seem to sit proud of the crown like basically all of the mastodons that I've seen in person.

    The initial feel of the fork is good, but it's not quite as smooth as my (broken in) Marz Bomber Z1. I guess time will tell if it smooths out to the same level.

    Thanks again for the help.
    The difference between a steerer being fully seated and not is a fraction of a mm. Not something you'd pick up by eye unless you had a lot of them to compare.

    I delivered my first Mastodon in July 2017. So you're well past then. Should be fine.
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  125. #1525
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    Initial setup question

    I'm a Clydesdale clocking in at 250lbs, Based on that I put 140psi to get 1.1in of sag for 20% with it at 140mm travel. What should I be looking at for rebound, I'm a fatty so I set it two clicks out from Max as my starting point, what should I be looking at for HS and LS compression for mainly trail riding? Thanks everyone for the insight and sorry if I'm rehashing something already covered. Psyched to get the Mastadon Pro vs the Bluto rct-3.

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  126. #1526
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    Quote Originally Posted by JonnyB76 View Post
    Initial setup question

    I'm a Clydesdale clocking in at 250lbs, Based on that I put 140psi to get 1.1in of sag for 20% with it at 140mm travel. What should I be looking at for rebound, I'm a fatty so I set it two clicks out from Max as my starting point, what should I be looking at for HS and LS compression for mainly trail riding? Thanks everyone for the insight and sorry if I'm rehashing something already covered. Psyched to get the Mastadon Pro vs the Bluto rct-3.

    Sent from my Pixel 3 using Tapatalk

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    Ignore sag, tune by frequency: https://www.shockcraft.co.nz/technic...rt/setup-guide
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  127. #1527
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    Quote Originally Posted by JonnyB76 View Post
    Initial setup question

    I'm a Clydesdale clocking in at 250lbs, Based on that I put 140psi to get 1.1in of sag for 20% with it at 140mm travel. What should I be looking at for rebound, I'm a fatty so I set it two clicks out from Max as my starting point, what should I be looking at for HS and LS compression for mainly trail riding? Thanks everyone for the insight and sorry if I'm rehashing something already covered. Psyched to get the Mastadon Pro vs the Bluto rct-3.

    Sent from my Pixel 3 using Tapatalk

    Sent from my Pixel 3 using Tapatalk
    Got my first ride in on some rooty rocky New England single track, first impressions, holy amazeballs Batman! I'm beyond happy with my intial setup, good God the Mastadon Pro isn't even in the same solar system as my Bluto rct-3. And I did the shake down run with the aluminum 650b+ wheelset I can only imagine how it'll be with carbon 26 fat wheels. I'm one happy camper!!

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  128. #1528
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    After having a not so great experience with a Wren, I've decided to go with a Mastodon for my Farley 9.8. Is there a best place to buy one these days? There are a bunch on ebay between 800-850, but I'd like to save a few bucks if I can.

    Amazon, Universal Cycles and a few others are out of stock. Modern bike is too. I can't seem to find anywhere other than eBay that has the Pro EXT in stock.
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  129. #1529
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    Quote Originally Posted by Seventh-777 View Post
    After having a not so great experience with a Wren, I've decided to go with a Mastodon for my Farley 9.8. Is there a best place to buy one these days? There are a bunch on ebay between 800-850, but I'd like to save a few bucks if I can.

    Amazon, Universal Cycles and a few others are out of stock. Modern bike is too. I can't seem to find anywhere other than eBay that has the Pro EXT in stock.
    It was 20% off on Hayes website recently, I went through my local bike shop who honored the 20% off but I paid for shipping, they got one from one of their distributors! Good luck

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  130. #1530
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    Quote Originally Posted by JonnyB76 View Post
    It was 20% off on Hayes website recently, I went through my local bike shop who honored the 20% off but I paid for shipping, they got one from one of their distributors! Good luck

    Sent from my Pixel 3 using Tapatalk
    It's 850 there too, so that 20% would be pretty nice lol.

    I'm also not sure if I need STD or EXT though. I have a 27.5 Farley EX 9.8 running 27.5x4.0s.
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  131. #1531
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    Quote Originally Posted by Seventh-777 View Post
    It's 850 there too, so that 20% would be pretty nice lol.

    I'm also not sure if I need STD or EXT though. I have a 27.5 Farley EX 9.8 running 27.5x4.0s.
    The EXT can run 27.5x4.5 I believe. I paid $700 including shipping. Plus $70 to set it up to 140mm travel and install it.

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  132. #1532
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    Can someone explain how the compression damping works on the Pro? I have yet to take my fork for a ride yet aside from riding around the yard, but I'm noticing that there is no real lockout here. I think I read somewhere that you can close both the LSC and HSC and if it should firm up, which mine does, but its nothing like my fox forks. What should I expect/be looking for?

    I'm generally a compression-wide-open-all-of-the-time sort of guy so this probably doesn't make much of a difference to me but I'm wanting to ensure that my damper is working properly. I do know that I'm getting full travel out of the damper shaft, but the oil height was a little over spec from factory. I left it alone since it didn't seem to be preventing full travel.

    Thanks for any info.
    Last edited by Shinkers; 05-01-2020 at 05:05 AM.

  133. #1533
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    It's not possible to damage the compression damper, even on bottoming it is well clear of the piston rod. I regularly tune the 'shim stack' on mine and if you want a full lockout, you can get a full lockout. The factory tune in my experience needs a second 'platform' valve to achieve full lockout.

  134. #1534
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    I have a Fatboy and run J5's with studs in the winter. It appears that the forks will clear the frame without needing shims but I am concerned about the change in geometry and handling by adding the Manitou. If I read the thread correctly I can use the Pro standard 120 version and add some spacers to prevent tire contact while reducing the travel to 100. This version also has a shorter AC than the Ext version which may not impact the handling as much as the Ext version. Anyone running either version on a Fatboy care to comment on handling changes after installing a Mastodon?

  135. #1535
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    Answering my own question - I reached to Hayes and they recommended the STD for my Farley.

    I installed it last week and it fits 27.5x4.0 Wrathchilds just fine. My current mindset is "to hell with fatbikes" right now after a long ass winter, so I can't really say how well it works. I still have the studs on my bike, heh.
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  136. #1536
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    Hi Folks,

    Odd thing with my 2019/later Mastodon, compared to my 1st gen one.

    Both my forks are 120mm Pro EXT, travel increased to 140mm

    In the 2019+ fork, when I change the orientation of the shims in the IVA, e.g. putting all the shims below the white piston, the available travel drops down to 120mm static. When I put the single spacer back above the piston, on re-pressurizing to about 80psi with the bike inverted, I'm back to 140mm available (maybe a tiny bit less).

    Available travel measured from o-ring position after full compressing the fork with no air in it, to top of the seals, so should be accurate.

    Weird.

    Both forks feel quite different with apparently the same settings, hence why I was mucking about with the IVA to try and get some plushness back.

    This issue of travel changing when I change the IVA is not something that affected the older fork.

    Have I done something wrong? What am I missing? I followed the travel change instructions on the 2019+ forks which have a slightly different spacer orientation compared to 2018.

  137. #1537
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    Anyone know off the top of their head what fork oil I need to service the Mastodon?

    Thanks,

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  138. #1538
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    Quote Originally Posted by Shark View Post
    Anyone know off the top of their head what fork oil I need to service the Mastodon?

    Thanks,

    Sent from my SM-G960U using Tapatalk
    Yep.

    Stock:
    Damper (blue) is Maxima 85/150 5wt or (clear) Maxima Synthetic RSF.
    Lower Legs Motorex Power Synt 5W40.

    I use Motorex 2.5wt and Supergliss in lowers for warm use.
    For cold use:
    Shockcraft Hot Oil Pink in damper and Motorex 5W40 or 0W40 for cold conditions.
    https://www.shockcraft.co.nz/2-5-wt-...l-motorex.html
    https://www.shockcraft.co.nz/hot-oil...hockcraft.html
    https://www.shockcraft.co.nz/supergl...c-motorex.html
    https://www.shockcraft.co.nz/fully-s...c-motorex.html
    https://www.shockcraft.co.nz/polar-s...c-motorex.html

    Damper is 87mm down (87mm air gap at full extension).
    Lower legs 16cc per side.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  139. #1539
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    Quote Originally Posted by Dougal View Post
    Yep.

    Stock:
    Damper (blue) is Maxima 85/150 5wt or (clear) Maxima Synthetic RSF.
    Lower Legs Motorex Power Synt 5W40.

    I use Motorex 2.5wt and Supergliss in lowers for warm use.
    For cold use:
    Shockcraft Hot Oil Pink in damper and Motorex 5W40 or 0W40 for cold conditions.
    https://www.shockcraft.co.nz/2-5-wt-...l-motorex.html
    https://www.shockcraft.co.nz/hot-oil...hockcraft.html
    https://www.shockcraft.co.nz/supergl...c-motorex.html
    https://www.shockcraft.co.nz/fully-s...c-motorex.html
    https://www.shockcraft.co.nz/polar-s...c-motorex.html

    Damper is 87mm down (87mm air gap at full extension).
    Lower legs 16cc per side.
    Thank you sir! I do appreciate it.

    What are your favorite fork seals?

    Sent from my SM-G960U using Tapatalk

  140. #1540
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    Quote Originally Posted by Shark View Post
    Thank you sir! I do appreciate it.

    What are your favorite fork seals?

    Sent from my SM-G960U using Tapatalk
    I'm a big fan of the Manitou 34mm stock low friction seals. P/N 141-34000: https://www.shockcraft.co.nz/mastodo...t-manitou.html

    Second choice would be SKF green 34mm. A bit more friction but probably last 3 seasons where the stock Manitou ones are more like 2 season seals: https://www.shockcraft.co.nz/fox-34-...l-kit-skf.html
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  141. #1541
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    Today I put a scratch on the stanchion of my Mastodon comp 100 ext and am looking for a replacement part, but not having much luck finding one. Can anyone point me in the right direction? Thank you.
    Last edited by Blaster182; 05-16-2020 at 06:20 PM.

  142. #1542
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    Handling changes:
    In summer, went from: kinda ok handling on trails until things get rough. I was fine using my fat bike as a backup for when my trail bike was broken, but I would definitely stay away from rough or steep trails, and jumping was painfully harsh. Went to: The fatbike is actually fun to ride in any situation, including steep, rough, or jumpy terrain. I actually found myself going out of my way to pop off trail obstacles and take the tougher lines. The slacker head angle (from 70.5 to 68) made downs much more fun, and I could barely notice a change on the ups. Definitely made the bike better. Strava times got a tiny bit slower on the ups, and a whole lot faster on the downs.

    In snow, the only really noticeable changes were a much smoother experience on rough sections of trail (post-holed sections became less harsh) and a higher bottom bracket kept my feet out of the powder more often. Beyond that, it wasn't a huge change.

  143. #1543
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    Quote Originally Posted by Blaster182 View Post
    Today I put a scratch on the stanchion of my Mastodon comp 100 ext and am looking for a replacement part, but not having much luck finding one. Can anyone point me in the right direction? Thank you.
    FYI- I was able to sorce part,
    I contacted Hayes and they gave me the part # and quantity that was in stock. These parts must be ordered through a LBS/dealer

  144. #1544
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    Hi
    Im considering mastodon for my wednesday. People from surly say that a2c should be 511 or less which means that my option is Pro std 100mm (i prefer pro over comp - am i wrong?).
    Does anybody use pro std 100 with anything bigger/fatter than 26x4 or with 29+ eg 29x3?

    thanks

  145. #1545
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    i've used the pro std with JJ 26x4.8 with no pb.

  146. #1546
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    Quote Originally Posted by totem. View Post
    Hi
    Im considering mastodon for my wednesday. People from surly say that a2c should be 511 or less which means that my option is Pro std 100mm (i prefer pro over comp - am i wrong?).
    Does anybody use pro std 100 with anything bigger/fatter than 26x4 or with 29+ eg 29x3?

    thanks
    You can convert a 120 to 100. The bottom out point is the same. Spacers control how far it extends and also where it bottoms (compresses).
    I think the only point to the shortest travel models was to save weight.

  147. #1547
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    New question here.

    Sorry if my question is dumb, but I just wanted to double-check before I pull the trigger on a Mastodon. I really appreciate any advice.

    I own a Trek Farley 5, 2019 with 27,5 x 4,5 tires. The Mastodon Comp EXT 100mm would seem the recommended size to go with, but its sold out at all websites with good deals that deliver to me at reasonable rates :-(

    I'm now looking at the Mastodon Comp EXT 120mm, as its available and the Trek website states that the Farley supports 120mm forks.

    What do you think? Is it the sensible thing to do? Is the 120mm downwards adjustable to 100mm if for some reason 120mm does not feel right?

  148. #1548
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    You will just want to roll with the 120 as is. If for some reason you want to make it 100 you can adjust it by equalizing the air chamber 20mm short or opening up the fork and adding spacers to limit the fork extension.

  149. #1549
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    (blind with a gun)

  150. #1550
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    Much obliged! I ordered the 120mm and am looking forward to installing it.

  151. #1551
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    This reply was intended for skinl19 I have been running a comp 100 ext on my Fatboy for over 2 years now and absolutely love it,. Handling and ride comfort is a complete game changer. You will be glad you did it!
    Manitou Mastodon?-20190529_205256.jpg

  152. #1552
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    Anyone using a 203mm rotor on the comp? Need a new one anyway and was thinking about going bigger. Might think about 180 on rear at same time.
    Dash Pt. State Park (Tacoma), Big Sky Montana during Snowboard Season, Duluth Mn, a couple of times of year incl. Xmas.

  153. #1553
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    I'm using a 203 front and 180 back, on a canyon dude. So pleased with this setup.

  154. #1554
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    Quote Originally Posted by orhum View Post
    I'm using a 203 front and 180 back, on a canyon dude. So pleased with this setup.
    Thanks
    Dash Pt. State Park (Tacoma), Big Sky Montana during Snowboard Season, Duluth Mn, a couple of times of year incl. Xmas.

  155. #1555
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    Quote Originally Posted by orhum View Post
    I'm using a 203 front and 180 back, on a canyon dude. So pleased with this setup.
    Is your rear wheel in the long position? I didnt think 180 fit. Came with 160, right?
    2017 Santa Cruz Tallboy C 29er
    2018 Canyon Dude fatty with Mastodon

  156. #1556
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    yep, came with 180/160. I wanted more power, so the easy and cheapest way was to increase the rotor size.
    First, I had a full rigid dude, that I upgrade later with the mastodon. But before the mastodon, I moved to 203/180mm rotors.
    The rear wheel is where the tire let it be. Nowadays I ride with either 27.5x3.0" or 26x4.0", so the wheel is the closest to the seat tube. (used to run a 4.8 JJ so the tire was the further from the seat tube)
    Keep in mind you obviously have to change the adaptor from 160 to 180 IS to PM. Canyon might not approved this rotor size increase. (might void the warranty)

  157. #1557
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    Quote Originally Posted by orhum View Post
    yep, came with 180/160. I wanted more power, so the easy and cheapest way was to increase the rotor size.
    First, I had a full rigid dude, that I upgrade later with the mastodon. But before the mastodon, I moved to 203/180mm rotors.
    The rear wheel is where the tire let it be. Nowadays I ride with either 27.5x3.0" or 26x4.0", so the wheel is the closest to the seat tube. (used to run a 4.8 JJ so the tire was the further from the seat tube)
    Keep in mind you obviously have to change the adaptor from 160 to 180 IS to PM. Canyon might not approved this rotor size increase. (might void the warranty)
    Mind sharing what adapter you used? Everything I read was 180 wouldn't fit with the tire towards the seat tube. This would be huge as the brakes are severally lacking after Mastodon was added 2 years ago.

    Sent from my Pixel 3 using Tapatalk
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    2018 Canyon Dude fatty with Mastodon

  158. #1558
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    If my memories serve me well, this is the guy https://r2-bike.com/SHIMANO-Adapter-...mm-RW-180-rear
    I'm not close to my bike right now.

  159. #1559
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    I had my first ride on the Mastodon Pro 120 on my Fatboy and love it. I haven't reduced the travel yet since I have the summer tires on. I noticed on quick rebounds I get a noise as if the seals are squeaking or or maybe the cartridge as it rebounds. Does anyone else have the same?

  160. #1560
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    I get that too, but hadn't thought much about it.

    Sent from my SM-G960U1 using Tapatalk

  161. #1561
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    I figured you guys would like our new Mastodon options: https://www.shockcraft.co.nz/mastodo...k-manitou.html

    Up to 170mm travel.

    I can almost hear the Manitou Engineers groaning from here!
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
    www.dougal.co.nz

  162. #1562
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    Dang, 170mm fat fork? Impressive!

    Sent from my SM-G960U using Tapatalk

  163. #1563
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    Quote Originally Posted by Dougal View Post
    I figured you guys would like our new Mastodon options: https://www.shockcraft.co.nz/mastodo...k-manitou.html

    Up to 170mm travel.

    I can almost hear the Manitou Engineers groaning from here!
    I have my Shockcraft 170mm Mastodon heading this way... Dougal hooked me up with some valving mods and and an IRT. Should be here Monday. SO EXCITED!!!

    Quote Originally Posted by Shark View Post
    Dang, 170mm fat fork? Impressive!
    Yes, Dougal's Mastodon is the pinnacle of fat forks.
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  164. #1564
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    I just put my 150mm (Also from Dougal) on my bike replacing my Wren and there is a significant difference.

  165. #1565
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    Quote Originally Posted by Dougal View Post
    Up to 170mm travel.

    I can almost hear the Manitou Engineers groaning from here!
    GOT IT!!!

    Dougal, am I the first to have the big travel Mastodon?!? I am gonna say yes...


    Apparently, customs wanted to see the world first big travel mastodon too...


    I will have it installed in a few hours, then will take it for a shakedown ride.

    Dougal / Shockcraft supports MTBR and gives everyone free tech help/advice, so we should all send him our business!
    THANKS DOUGAL!!! #shockcraftisAWESOME
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  166. #1566
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    Quote Originally Posted by KenPsz View Post
    I just put my 150mm (Also from Dougal) on my bike replacing my Wren and there is a significant difference.
    Great to hear. Your one left in the same shipment as Rodneys but his got held up.

    Quote Originally Posted by Rodney View Post
    GOT IT!!!

    Dougal, am I the first to have the big travel Mastodon?!? I am gonna say yes...


    Apparently, customs wanted to see the world first big travel mastodon too...


    I will have it installed in a few hours, then will take it for a shakedown ride.

    Dougal / Shockcraft supports MTBR and gives everyone free tech help/advice, so we should all send him our business!
    THANKS DOUGAL!!! #shockcraftisAWESOME
    Look forward to hearing how it goes!
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
    www.dougal.co.nz

  167. #1567
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    Ive got my mastodon PRO EXT :-)
    There is small package ith spacers inside the box with partnumber 141-30159-K012.
    Are they top-out spacers?

    What ive found in internet is:

    C-clip design
    10 mm total height, 27.9 mm diameter, with internal recess 1 mm each side
    Fits 10 mm shafts
    Attached Thumbnails Attached Thumbnails Manitou Mastodon?-img_0417.jpg  


  168. #1568
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    ^Pretty sure that is how in change travel length.

    I finally ordered one for my fat bike, seeing as how it is my only bike now I figure I deserve some squish.

  169. #1569
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    Does anyone know what the stock steerer tube length is on the Mastodon's?

  170. #1570
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    Quote Originally Posted by justin51 View Post
    Does anyone know what the stock steerer tube length is on the Mastodon's?
    Roughly 9.75" with crown race installed.

  171. #1571
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    First ride tonight and I'm loving it. #McDonalds

  172. #1572
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    Suspension sprays?

    Has anyone seen any research or have an informed opinion on whether external spray suspension oils like ďFinish Line Max Suspension SprayĒ provide any benefits for forks like the Mastodon?

  173. #1573
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    Quote Originally Posted by FitmanNJ View Post
    Has anyone seen any research or have an informed opinion on whether external spray suspension oils like ďFinish Line Max Suspension SprayĒ provide any benefits for forks like the Mastodon?
    forr the last 3 years, I used finish line spray on my dropper, fork and shock after every ride. One mastodon has over 2000 hard miles on it, and the fork seals are still good. works for me.
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  174. #1574
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    Strong, Light, Cheap; Pick Two.

  175. #1575
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    Ok so this is my first true suspension fork (have ridden road bikes and rigid fat bikes till now) and researching it it looks like itís time for a mid season servicing of the lowers.

    I do most of my own wrenching so Iím not afraid of tackling this, but wanted to make sure I have my ducks in a row.

    What are you guys using for oil in the lowers?
    And is it the same as used in the dampers?

    I found some of the Manitou Ďsemi bath oilí (from the service manual) for an obnoxious $12.35 for 3.5oz

    Looking at the label it looks like synthetic 5w/40 oil.

    Is it that simple? Go to the local auto store and pick up a quart for $10?

    Or should I go to the local motorcycle shop and see what they have?

  176. #1576
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    Curious to see if anyone has a used Mastodon laying around that they would like to sell? Putting a feeler out there before I go ahead and buy new.

    Thanks

  177. #1577
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    Quote Originally Posted by justin51 View Post
    Curious to see if anyone has a used Mastodon laying around that they would like to sell? Putting a feeler out there before I go ahead and buy new.

    Thanks
    I bought the My 21 Mastodon when it was on sale for $679.



    I got the 100mm EXT Pro for my Growler-

    Attached Thumbnails Attached Thumbnails Manitou Mastodon?-115822803_10221171693634112_4826711200112987332_o.jpg  

    Manitou Mastodon?-115975043_10221171693114099_8607223540845697431_o.jpg  

    Strong, Light, Cheap; Pick Two.

  178. #1578
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    Any suggestions on crown race recommendations? Or will any 1 1/8th crown race work?

    Thanks

  179. #1579
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    Quote Originally Posted by justin51 View Post
    Any suggestions on crown race recommendations? Or will any 1 1/8th crown race work?

    Thanks
    You mean 1.5Ē right?

    I got a Cane Creek 40 1.5Ē crown race to match the cane creek 40 headset. The fork did not come with a star nut or shock pump though. I already had some extras so not a big deal, but youíll need to get if you donít already have.
    Get out of the gutter and onto the mountain top.

  180. #1580
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    Quote Originally Posted by EvilSmrk View Post
    What are you guys using for oil in the lowers?
    And is it the same as used in the dampers?

    I found some of the Manitou Ďsemi bath oilí (from the service manual) for an obnoxious $12.35 for 3.5oz

    Looking at the label it looks like synthetic 5w/40 oil.

    Or should I go to the local motorcycle shop and see what they have?
    damper oil is different then the lower oil. As per the Mastodon manual, upper oil is 3w or 5w (depending on temps) and lower is 5w/40.

    Dougal from Shockcraft uses the motorex Supergliss for warmer temps and polar for colder temps. I have both, and swap out yearly depending on what season i am going into...
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  181. #1581
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    Quote Originally Posted by singletrackmack View Post
    The fork did not come with a star nut or shock pump though. I already had some extras so not a big deal, but youíll need to get if you donít already have.
    Headsets usually come with starnuts. How can you expect a fork mnfr to know how you will be installing it?

    same with the shock pump. you really expect manitou to give out a pump for every fork they sell?

    I am partial to the digital ones. easier to set vs the needle sweep guages. BUT, i use needle sweep for tires...
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  182. #1582
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    Quote Originally Posted by Rodney View Post
    Headsets usually come with starnuts. How can you expect a fork mnfr to know how you will be installing it?

    same with the shock pump. you really expect manitou to give out a pump for every fork they sell?

    I am partial to the digital ones. easier to set vs the needle sweep guages. BUT, i use needle sweep for tires...
    Was just letting Justin51 know what else he will need. Didnít say those things should have come with the shock, but I have 3 shock pumps because the last three forks and/or rear shocks I bought came with them. Also, I donít remember getting a star nut the last few times I bought a headset.
    Get out of the gutter and onto the mountain top.

  183. #1583
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    Quote Originally Posted by singletrackmack View Post
    You mean 1.5Ē right?

    I got a Cane Creek 40 1.5Ē crown race to match the cane creek 40 headset. The fork did not come with a star nut or shock pump though. I already had some extras so not a big deal, but youíll need to get if you donít already have.
    Ah yes, that was a typo.... I also need a star nut.

    Thanks for the info, much appreciated!!!!!!

    Hope everything is here later this week as I can't wait to hit the trails with the Mastodon!!!!!!!!

  184. #1584
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    Quote Originally Posted by justin51 View Post
    Ah yes, that was a typo.... I also need a star nut.

    Thanks for the info, much appreciated!!!!!!

    Hope everything is here later this week as I can't wait to hit the trails with the Mastodon!!!!!!!!
    Not sure if you are switching from a rigid fork or other fork, but you may need shorter caliper mounting bolts too.

    The rigid fork I switched from is set up for 160mm rotors and I had a brake adaptor to run 180s. Well, this requires long bolts to mount the caliper and the adaptor together. With the mastodon already set up for 180s thereís no adaptor needed, which means the bolts are way too long and canít be used safely to mount the caliper on the mastodon.

    I was thinking of going to Ace hardware and looking for some shorter bolts, but probably best I go LBS for me here. This being my first new bike in over 10 years and I already made a stupid mistake with the hydro brakes after mounting them wrong and other dumb things, I donít want risk doing something else stupid especially when it involves the front brake, let a lone a new fork.

    Luckily, LBS is awesome and so far every time Iíve had an issue or done something dumb, which has been quite a few times lately with the new bike, they fix it all professional like right when I walk in, give me wrenching tips, extra take off parts from the bin and chat trails/conditions. Was hoping to have the fork mounted Friday night and riding Saturday morn, but ran into dumb brake issues testing the bike Sat morn after Friday nightís install, which I finally figured out this morning, but then ran into the bolt length issue and had no time to get to the lbs. So tomorrow it is.

    Hopefully you can get all the parts needed and ready to go for a quick and proper install when your fork arrives. Good luck!
    Get out of the gutter and onto the mountain top.

  185. #1585
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    I thought that going from a lighter rigid fork to a heavier suspension fork would slow me down due to the weight penalty. It is quite the opposite- I'm bombing down hills, ripping through rooted areas, and crushing it over rough spots at my local trails. I had also switched from 5" minions to 4" Jumbo Jims so that helped as well but this fork has been great so far. Now if I can get it dialed in. I find it feels better with lower pressures and softer damping/rebound settings. Maybe small bump compliance isn't great?
    I too had to find caliper bolts to fit my 180 rotors as the rigid was set up for 160 and I had an adapter. I used the same longer bolts but added alignment cups w/washers to take up the slack.
    Strong, Light, Cheap; Pick Two.

  186. #1586
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    Quote Originally Posted by metalskool View Post
    I had also switched from 5" minions to 4" Jumbo Jims so that helped as well but this fork has been great so far. Now if I can get it dialed in. I find it feels better with lower pressures and softer damping/rebound settings. Maybe small bump compliance isn't great?
    swapping from heavy big minions to smaller lighter JJ makes a HUGE difference...

    Regarding the settings... What travel you have the fork set to? What pressure?

    Without IRT: i had my 150 fork set to 83 psi, max rebound, half high speed comp, and 1 click of low speed comp. On my 120mm fork my clicker settings are the same, but i run 100 psi in it.

    I found my pressure going up/up/up in order not to bottom out the fork, but this reduced small bump sensitivity and made for harsher ride. So, i went IRT.

    With IRT: my current air pressure is 75 psi in the main chamber, and 150 in the IRT. makes for a way more plush ride, with small bump compliance being much much better. And the ramp is much more steeper to bottom. Totally worth it, IMHO.
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  187. #1587
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    Quote Originally Posted by Rodney View Post
    forr the last 3 years, I used finish line spray on my dropper, fork and shock after every ride. One mastodon has over 2000 hard miles on it, and the fork seals are still good. works for me.
    Thanks for commenting ó thatís been my sense, also. I was hoping that Dougal would chime-in with his opinion, too, based on his vast experience.

  188. #1588
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    Quote Originally Posted by FitmanNJ View Post
    Thanks for commenting ó thatís been my sense, also. I was hoping that Dougal would chime-in with his opinion, too, based on his vast experience.
    I say don't lube the stanchions.

    Low friction seals are made to leave a thin oil film on your stanchions already. You can see that with the glossy sheen. If you have no glossy sheen after pumping it a few times then your fork probably needs a lower leg service.
    Owner of www.shockcraft.co.nz, Mech Engineer, Tuner, Manitou, Motorex, Vorsprung EPTC, SKF, Enduro
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  189. #1589
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    Ive done some internet research about IRT kit for mastodon and finally choose one for mattoc pro/expert (141-32668-k003). It seems i was wrong; mechanic said it doesnt fit - cap has different diameter.
    Question: is it possible to replace only cap or have to buy entire new set?

    Manufacturing date of mastodon is 04/2019.

  190. #1590
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    Quote Originally Posted by Dougal View Post
    I say don't lube the stanchions.

    Low friction seals are made to leave a thin oil film on your stanchions already. You can see that with the glossy sheen. If you have no glossy sheen after pumping it a few times then your fork probably needs a lower leg service.
    Many thanks for your additional thoughts!

  191. #1591
    mtbr member
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    Quote Originally Posted by totem. View Post
    Ive done some internet research about IRT kit for mastodon and finally choose one for mattoc pro/expert (141-32668-k003). It seems i was wrong; mechanic said it doesnt fit - cap has different diameter.
    Question: is it possible to replace only cap or have to buy entire new set?

    Manufacturing date of mastodon is 04/2019.
    You don't mention Pro or Comp. I am using the Mattoc pro/expert IRT with both of my Mastodon Pro forks. I bought several IRTs and use them in both Mattocs as well as Mastodon. The Comp appears to not work w/o mods.

  192. #1592
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    Quote Originally Posted by Aresab View Post
    You don't mention Pro or Comp. I am using the Mattoc pro/expert IRT with both of my Mastodon Pro forks. I bought several IRTs and use them in both Mattocs as well as Mastodon. The Comp appears to not work w/o mods.
    its PRO EXT

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