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  1. #201
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    Quote Originally Posted by OldManBike View Post
    Well, it voids the warranty.
    Not according to Ibis. I asked just last week.

  2. #202
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    Opinions about a 32 mm stanchion 650b fork for aggressive trail riding and east coast enduro? I've currently got a Lyrik on my HD with 26" Flows, but think its probably more fork than I need. I weigh ~180#.

    Am converting my HD to 650b and leaning towards getting a 650b-specific fork, but can't decide which to consider. Don't think I need a 36 Vengeance, don't really want a 34 Float, not sure whether to wait for a 34 Slant. Would a 32 Revelation or a 32 Velvet be stout enough?

    650b HD riders on 32 forks, how satisfied have you been?

  3. #203
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    Have you looked at the Magura TS8 150mm 650b fork. It's reportedly less than 4lbs. & very stiff due to the double wheel arch. Read the write-ups on MTBR, Mtn Bike Action, etc. I also think you'll want a 150mm over a 140mm.

  4. #204
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    White Brothers Loop is another option. Travel is adjustable internally 150, 140, 130, etc. Right about 4 lbs and pretty dam stiff for a 32mm fork.
    2013 Banshee Spitfire V2 650b

  5. #205
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    I have a 32mm 650 Revelation on my mojo HD140 set at 150mm travel. I can only compare this to the fork I had on it before...a 135mm White Brothers Fluid 650B which was also a 32mm stanchion. The revelation is abt .5lbs lighter with 15mm more travel and it is just as stiff as the fluid 650B. My other fork on my P29er is also 32mm stanchion so I don't have any experience on 34 or 36mm forks.

    i weigh abt 190.

  6. #206
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    Ibis Mojo HD 650B

    Just finished up my Ibis Mojo 650B 160. I have nothing but great thigs to say about this build, and would recommend it to anyone think of building a 650b mojo!650b Mojo HD ... Heavy Duty-ibis-mojo-650-1.jpg650b Mojo HD ... Heavy Duty-ibis-mojo-650-2.jpg650b Mojo HD ... Heavy Duty-ibis-mojo-650-3.jpg650b Mojo HD ... Heavy Duty-ibis-mojo-650-5.jpg
    Attached Thumbnails Attached Thumbnails 650b Mojo HD ... Heavy Duty-ibis-mojo-650-4.jpg  


  7. #207
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    Quote Originally Posted by red bank rider View Post
    Wouldn't that be "add 0.75"??

    So 13.5"(for HD140) + 0.75" = 14.25"??

    Why only 1/2 inch for you? Are the Nobby Nics considerably smaller than 27.5"?
    650b tires on average are shorter than 27.5" and 26" tires on average are bigger than 26".
    2013 Santa Cruz TRc 650b
    2015 Lynskey Cooper CX
    2010 Soma Groove
    1987 Haro RS1

  8. #208
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    Thanks for the good feedback on 32 forks. I'll give the Loop a closer look, I've heard good things about it too.

    Anyone else?

  9. #209
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    I would wait for the Slant. IMHO, the HD deserves the 34mm stanchions. You do not want a great stiff frame with a noodly fork. Your Lyrik will get you acceptable clearance for up to 2.3 Neo Moto and when the Slant is out, you will be able to upgrade to large 2.35 and 2.4 tires.

  10. #210
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    I guess I've kind of become a Rock Shox guy again.... a 32mm fork from them should be noticeably stiffer than a comparable Fox.

  11. #211
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    Hi Agledhill

    I am getting a HD in about two weeks and a big concern of mine is if the 650b conversion will work. I have been reading some of the posts here and have seen
    that the rear shocks travel has to be reduced to 140mm to prevent seat post rub. That
    there are only certain tires that will fit. Were you able to keep your rear travel at 160mm and not have the tire hit the seat tube. I love the bike, but want the option of the 27.5.

  12. #212
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    Quote Originally Posted by lonewolf1 View Post
    Hi Agledhill

    I am getting a HD in about two weeks and a big concern of mine is if the 650b conversion will work. I have been reading some of the posts here and have seen
    that the rear shocks travel has to be reduced to 140mm to prevent seat post rub. That
    there are only certain tires that will fit. Were you able to keep your rear travel at 160mm and not have the tire hit the seat tube. I love the bike, but want the option of the 27.5.
    I am currently running the rear shock with shims in it to prevent the rear tire from hitting the seat tube. It's really easy to do and if you do a google search you can find out how to do it. I am also running a nobby nic 2.25 rear tire with no rubbing issues. I love this bike at 650b and don't even ride my others anymore. 650b on this bike is the way to go!

  13. #213
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    650b Mojo HD ... Heavy Duty

    Guys - what's the Bottom Bracket height after the 650b conversion in HD140 mode?
    Any sufficiently advanced technology is indistinguishable from magic
    - Arthur C. Clarke

  14. #214
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    I just measured mine with the new 650b revelation fork at 150mm and 2.3 neo moto tires. To the
    Dead center middle of bb, unsagged is 13.75"

  15. #215
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    Quote Originally Posted by red bank rider View Post
    I just measured mine with the new 650b revelation fork at 150mm and 2.3 neo moto tires. To the
    Dead center middle of bb, unsagged is 13.75"
    Interesting. The Ibis site lists the HD140 at 13.5" with a 150mm fork. Add 650B wheels it should be 14"
    2013 Banshee Spitfire V2 650b

  16. #216
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    Quote Originally Posted by skidad View Post
    Interesting. The Ibis site lists the HD140 at 13.5" with a 150mm fork. Add 650B wheels it should be 14"

    Interesting indeed. I was shocked I measured it three times just to make sure. Perhaps it's the Fox that Ibis uses which normally has a higher a2c . Maybe Neo moto tires might be a bit smaller. Either way, I think this is a good thing for bottom bracket height.

    Edit: tires are at 22psi when measured. You can almost reach 14" if you goto 30.
    Last edited by red bank rider; 04-04-2013 at 07:06 PM.

  17. #217

  18. #218
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    StiHacka - Any feedback on how it handles with the BB at this height? What travel are you running the rear shock and front fork at? How's the Trail Taker as a front tire?

    Thanks,
    Shane


    Quote Originally Posted by StiHacka View Post
    30-ish pounds with pedals now. 1x10 Type 2 X.9, Bling Ring, Vengeance HLR Air, TrailTaker 2.4 and NoNi 2.25.



    For those interested in BB height, look at Ibis site, find the geometry info, add 1/2" for 650b wheels.

  19. #219
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    Quote Originally Posted by seleniak View Post
    StiHacka - Any feedback on how it handles with the BB at this height? What travel are you running the rear shock and front fork at? How's the Trail Taker as a front tire?
    Hi Shane,

    I like it a lot. I ride mostly technical trails in New England and a bit higher BB is not a bad thing here. My setup is 160mm front (XFusion Vengeance 2013) and 160mm rear (Avalanche DHX 5) with a 1/8" spacer. I need to spend more time on the TT to be able to give you my verdict but so far I have been pretty happy with it. The bike eats chunk without hesitation and climbs very steep technical climbs with ease. I am the most limiting factor, no doubt about that.

  20. #220
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    Has anyone tried 650B NN 2.35 on a Gen HD140? I have them on my Carbine 275 and they barely clear. FYI I am a former HD owner that misses his bike and am thinking of going back to a Mojo HD and converting it.

  21. #221
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    Quote Originally Posted by CasinoKiD View Post
    Has anyone tried 650B NN 2.35 on a Gen HD140? I have them on my Carbine 275 and they barely clear. FYI I am a former HD owner that misses his bike and am thinking of going back to a Mojo HD and converting it.
    See Grams Light Bikes - Mountain Bike and Gear Reviews, and News: Schwalbe Nobby Nic 650B Review

    I just returned from my first ride on Hans Dampf 2.25 Trailstar w/ Snakeskin and I think you would like that tire a lot, too.

  22. #222
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    Quote Originally Posted by StiHacka View Post
    See Grams Light Bikes - Mountain Bike and Gear Reviews, and News: Schwalbe Nobby Nic 650B Review

    I just returned from my first ride on Hans Dampf 2.25 Trailstar w/ Snakeskin and I think you would like that tire a lot, too.

    Can you take a pic of the rear tire clearance on the HD?

  23. #223
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    Quote Originally Posted by CasinoKiD View Post
    Has anyone tried 650B NN 2.35 on a Gen HD140? I have them on my Carbine 275 and they barely clear. FYI I am a former HD owner that misses his bike and am thinking of going back to a Mojo HD and converting it.
    Well, I have to ask....brand new Carbine (for sale apparently) and you want to go back to the Mojo HD. What didn't you like about the Carbine or more what is it about the Mojo that makes you want to go back?

    Thanks
    2013 Banshee Spitfire V2 650b

  24. #224
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    Quote Originally Posted by skidad View Post
    Well, I have to ask....brand new Carbine (for sale apparently) and you want to go back to the Mojo HD. What didn't you like about the Carbine or more what is it about the Mojo that makes you want to go back?

    Thanks
    To me the HD climbed, descended, cornered and looks way sexier than the Carbine. I just found myself more comfortable on that bike more than any other biked I've owned. After looking at the rear tire clearance of my Carbine I realize I just could have kept the Mojo HD and converted it. Take a look at the pic below...
    Attached Thumbnails Attached Thumbnails 650b Mojo HD ... Heavy Duty-p4pb9388686.jpg  


  25. #225
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    650b Mojo HD ... Heavy Duty

    Quote Originally Posted by hmarquardt View Post
    I've been reading these 650b Ibis forums with great interest for 6 months. After 4 years of riding my 1st generation Mojo I decided to upgrade & build out a 650b Ibis. I've ridden an HD 140mm & a SL with a 650b front wheel with Fox 150mm 26" fork. I know, Not Recommended! I have a friend who was experimenting & I got to ride along to gather data.
    I bought a never built SL size large & have been gathering XT Dyna Sys drivetrain parts, etc. for the build. My plan is to use a Magura TS8 650b 150mm front fork(must have a 1 1/8" straight steerer) and leave the rear wheel as a 26"er. I loved the slacker HeadTube angle on the HD & am thinkin' the 650b fork & wheel will be the perfect way to slacken the HT angle of the SL, while keeping it lighter & more CC/AM like. We'll see .............
    Wil be starting the build soon & will contribute again with photos & ride info.
    Good for you. It's gonna rock.

  26. #226
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    Quote Originally Posted by CasinoKiD View Post
    Can you take a pic of the rear tire clearance on the HD?
    I posted a few pics here: HK - Forums • View topic - Sti's random 650b / 27.5" thread

  27. #227
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    Quote Originally Posted by StiHacka View Post
    Is that clearance pic of a HD 140 or 160?

  28. #228
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    Quote Originally Posted by CasinoKiD View Post
    Is that clearance pic of a HD 140 or 160?
    HD160 but there is no difference between the two in that spot.

  29. #229
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    Quote Originally Posted by StiHacka View Post
    HD160 but there is no difference between the two in that spot.
    Thx, now if I have any luck I can get rid of my Carbine frame.

  30. #230
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    Just finished my dream HD build. This thing loves the chunk... Glad to see the 2.25 Hans fits in the rear. That will be my next tire.

    Crappy pic
    650b Mojo HD ... Heavy Duty-imag0262.jpg

  31. #231
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    This may sound really stupid...but how would I shim a fox rc4 coil to work in 160? Googled it and no luck....are there any tyres that would render this unneccesary?

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    Like this? Mine is an Avy DHX5 but it should work the same with RC4.


  33. #233
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    650b Mojo HD ... Heavy Duty

    Hey StiHacka, was that you talking about putting 2.25 Hans Dampf on the back of your bike? Wondering if it would fit on an SL. The 27.5 Tire Reference thread has it smaller than a Neo Moto, but I'd like a second opinion.

  34. #234
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    I'll get you some measurements later today. Yes, the HD 2.25 is relatively small and I happen to have both a HD 2.25 and a Neo Moto 2.3 aired.

    Edit: The HD is not as wide as the NM (~2.2 vs. 2.3+ max width with knobs), but the HD is a little taller, approx by about 1/8" (the wheel is ~1/4" taller). I have the HD on a wider rim so that can make a small difference, too.
    Last edited by StiHacka; 05-25-2013 at 09:56 AM.

  35. #235
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    650b Mojo HD ... Heavy Duty

    Hmmm. 1/8" taller than a Neo probably means alot of rubbing on a SL

    Thanks for the info!

  36. #236
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    Quote Originally Posted by doismellbacon View Post
    Hey StiHacka, was that you talking about putting 2.25 Hans Dampf on the back of your bike? Wondering if it would fit on an SL. The 27.5 Tire Reference thread has it smaller than a Neo Moto, but I'd like a second opinion.
    Here's a third opinion:
    Schwalbe, Hans Dampf (27.5x2.25) Crest: 27.75x2.25
    Pacenti, NeoMoto (27.5x2.3) Flow EX: 27.56 x 2.41

    From my updated table at: 27.5 Tire Size Reference (Post #24).

    Consistent with StiHacka.

  37. #237
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    New tire on my HD - Wild Grip'r 2.25 Advanced in the rear. It is a very tight fit, the Grip'r is huge for a 2.25.

    Some more info about the tire is here: HK - Forums • View topic - Sti's random 650b / 27.5" thread



  38. #238
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    Thanks Sti and Lixxfe!

  39. #239
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    Nice

    Been waiting for the grip'r, where did you find them?

  40. #240
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    Quote Originally Posted by Deerhill View Post
    Been waiting for the grip'r, where did you find them?
    BikeTiresDirect have them in stock: Search Results: 650b - BikeTiresDirect.com
    Their weight data is incorrect though, better follow the Michelin site for technical details.

  41. #241
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    Just go to 650b, that's awesome.


    Last edited by wiwit_we; 06-18-2013 at 07:34 PM.

  42. #242
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    160 650 option

    Quote Originally Posted by lixxfe View Post
    Here's a third opinion:
    Schwalbe, Hans Dampf (27.5x2.25) Crest: 27.75x2.25
    Pacenti, NeoMoto (27.5x2.3) Flow EX: 27.56 x 2.41

    From my updated table at: 27.5 Tire Size Reference (Post #24).

    Consistent with StiHacka.
    Any of these work with a 160 unshimmed?
    I want to have the option of going back and forth between 26 and 650
    And so dont want to shim...thoughts?

  43. #243
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    Does anyone have ride experience on a 7.875"x2.25" shock (using 140 limbo chips)? I've seen Derby mention it a few times as a 150mm-ish travel lower-BB alternative to shimming a 160, but I'm curious who's actually tried it and what they've thought.

    Right now I'm on a HD140 with the 650b Rev and the stock RP23. I'm seriously considering a Vector Air, but that's not something I'd want to order without making sure I'm decided on what size. I've spent about 6 months on my current setup, loving it. I came from an SL and haven't spent any real time on an HD160 of either wheel size.

  44. #244
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    maybe a stupid question, but Im new to this 650 stuff and I read the whole thread but found no convincing info about this: can a I run a 27.5 tire on a 26" float 36 160mm fork??
    Thanks in advance!

  45. #245
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    Yes, many rider post reports in other threads, such as the Forks sticky, that the Fox 36 arch and crown at bottom travel have plenty of tire clearance at with 650b tires of any size available now.

    It is only the 32mm and maybe 34mm 26" Fox forks which have crown rub issues at bottom travel with larger volume 650b tires.

  46. #246
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    Quote Originally Posted by ianthom View Post
    Any of these work with a 160 unshimmed?
    I want to have the option of going back and forth between 26 and 650
    And so dont want to shim...thoughts?
    I can't answer your question, but I can say that adding / removing the shim is so fast and easy that I wouldn't let it stop you from running whatever tire you want to run.... all you've got to do is let the air out of your shock, unscrew the air can by hand, snap the shims off by hand, screw the can back on and air it back up...... 3 minutes, no tools other than the shock pump. Also, you're unlikely to notice the few mm of travel you've lost if you prefer to just leave the shim in there when going back to 26". That's what I've been doing lately because the bike still feels great with the slightly reduced travel.
    It's definitely nice to be able to drop the bb, slacken the angles, and have big-ass 26" tire on a burly wheel when conditions warrant it.

  47. #247
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    Quote Originally Posted by doismellbacon View Post
    I can't answer your question, but I can say that adding / removing the shim is so fast and easy that I wouldn't let it stop you from running whatever tire you want to run.... all you've got to do is let the air out of your shock, unscrew the air can by hand, snap the shims off by hand, screw the can back on and air it back up...... 3 minutes, no tools other than the shock pump. Also, you're unlikely to notice the few mm of travel you've lost if you prefer to just leave the shim in there when going back to 26". That's what I've been doing lately because the bike still feels great with the slightly reduced travel.

    It's definitely nice to be able to drop the bb, slacken the angles, and have big-ass 26" tire on a burly wheel when conditions warrant it.
    Im running a coil though...how is the process for that?!

  48. #248
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    Quote Originally Posted by ianthom View Post
    Im running a coil though...how is the process for that?!
    Simple.

  49. #249
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    Quote Originally Posted by StiHacka View Post
    Simple.
    Cool...ummmm so sorry for my ignorance, but what is the process for gettng a "shim" on a coil....and where would I get one?!

  50. #250
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    650b Mojo HD ... Heavy Duty

    You can find nylon washers at the hardware store with an Inside diameter the same or slightly smaller than the shaft on your shock..... 3/8 ID washers are perfect for a 10mm shock shaft..... Just snip them so you can get them onto the shaft. Or you can cut them out of any readily available plastic...Derby used a milk carton I believe. He started an excellent thread on the subject a couple years ago shimming a coil shock for his std Mojo 650b conversion. Search for that.

  51. #251
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    The shims can be hand made with scissors cutting out thin plastic such as water bottle material into split flat wide washers. Some have found split washers at a hardware store that can fit.

    Always check seat tube clearance by removing the coil or deflating the air shock and sitting on the bike, maybe bouncing LIGHTLY to add a little bottom flex, to be sure your tire does not contact the seat tube.

    Shock Bottom shim instruction...
    650b shock bottom-out shim for seat tube clearance

  52. #252
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    Made another swap on my 27.5 build...New I9's with full XX1...made great even better!!!

    650b Mojo HD ... Heavy Duty-9230324549_4125b16e25_b.jpg

  53. #253
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    So i am looking to go cc dbair cs with my mojo hd 650b. (If you haven't seen the build is linked below.) I am running the stock 8.5/2.5 fox float that has had the travel united with spacers on the shock shaft and a volume reduction kit. This is not as easily accomplished in the dbair. I'm thinking of going with the 7.78/2.25 however a few people I have talked to who are suspension experts and sell cc aren't wild about the idea. Any thoughts??? Thanks all
    650b-elieve

    Here's mine
    [url]http://forums.mtbr.com/ibis/murdered-ibis-mojo-hd3-980806.html[/

  54. #254
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    i am interested in very same thing. looks like you need to remove inner can to be able to shim the travel. not sure how difficult it is.

  55. #255
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    I just got off w Tom at ibis who emphatically told me no way on anything that is not 8.5 in 160 and 7.75 in 140 so it's all about limiting stroke
    650b-elieve

    Here's mine
    [url]http://forums.mtbr.com/ibis/murdered-ibis-mojo-hd3-980806.html[/

  56. #256
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    yeah, i am planing to use 8.5 so i can go back to 26" or 650b/26" combo if i want to

  57. #257
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    Building up a mojo hd 650 from scratch.
    Trying to figure what's the best option for a fork.
    Fox 34 150mm 650b - lighter, no clearance issues
    Fox 36 talas (26") - less a2c height=lower bb, burlier
    Thoughts?
    Edit, the a2c numbers between those 2 forks are very simalir,
    Only 5mm difference, so that won't make a difference.

  58. #258
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    Also, how much lower does the 140mm mode make the bb compared to the 160mm?
    Maybe 1/4"?

  59. #259
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    Quote Originally Posted by murrdogg11 View Post
    Building up a mojo hd 650 from scratch.
    Trying to figure what's the best option for a fork.
    Fox 34 150mm 650b - lighter, no clearance issues
    Fox 36 talas (26") - less a2c height=lower bb, burlier
    Thoughts?
    Edit, the a2c numbers between those 2 forks are very simalir,
    Only 5mm difference, so that won't make a difference.
    Neither one, go with RS Pike 160. I don't have a Mojo HD, but it's in my radar screen. I do have a Pike 140 on a 29'er, and I like it better than the Fox offerings.

  60. #260
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    Quote Originally Posted by murrdogg11 View Post
    Also, how much lower does the 140mm mode make the bb compared to the 160mm?
    Maybe 1/4"?
    on my HD (26" wheels) in 140mm rear travel mode with a 150mm Revelation up front I get a 13.5" bb height, and setup with 160mm rear/160mm front (Lyrik) travel it's 13.875". those numbers are with same/similar tires. the fork height makes more difference than the choice of rear shock/chips. I've measured it with the Lyrik up front and 140mm rear and although I didn't write down the bb height, it was a lot closer to 160/160 height than 140/150 height.

  61. #261
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    Quote Originally Posted by hardboiled View Post
    on my HD (26" wheels) in 140mm rear travel mode with a 150mm Revelation up front I get a 13.5" bb height, and setup with 160mm rear/160mm front (Lyrik) travel it's 13.875". those numbers are with same/similar tires. the fork height makes more difference than the choice of rear shock/chips. I've measured it with the Lyrik up front and 140mm rear and although I didn't write down the bb height, it was a lot closer to 160/160 height than 140/150 height.
    Even differences between similarly long works can lead to significant BB height variations. A 160 Lyrik has a way shorter AC distance than a 650b-ready Vengeance. As a result, you will run much smaller tires in the Lyrik than in the Vengeance if you go with the biggest tire available (27.5" tall vs. 28" tall). Those little difference add up fairly quickly. My 160mm HD with a 160mm Vengeance, 28" tall front tire and -1deg angleset has BB static height north of 14.5". With a Lyrik and Neo Motos on a smaller rim, it was sitting around 14.2" IIRC.

  62. #262
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    does a 2.25 nobby nic clear the rear chainstay ok?
    does rim selection come into play with rear tire clearance, ie would a wider flow or a narrower arch be better?

  63. #263
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    Quote Originally Posted by murrdogg11 View Post
    does a 2.25 nobby nic clear the rear chainstay ok?
    does rim selection come into play with rear tire clearance, ie would a wider flow or a narrower arch be better?
    Both Nobby Nic and Hans Dampf 2.25 clear the rear triangle just fine.
    Yes, a rim makes a difference. A wider rim == a slightly wider and taller casing. For HD, I would definitely go Flow. I have a P35 in the front and a Light Bicycle carbon rim in the rear.

  64. #264
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    Quote Originally Posted by StiHacka View Post
    Both Nobby Nic and Hans Dampf 2.25 clear the rear triangle just fine.
    Yes, a rim makes a difference. A wider rim == a slightly wider and taller casing. For HD, I would definitely go Flow. I have a P35 in the front and a Light Bicycle carbon rim in the rear.
    Assume you mean with a shim?

  65. #265
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    HDR not a good fit for big rubber. Here are 2.35 Hans Dampf on a Mojo 650b, I-9 torch wheels. About 3 mm of tire clearance. Small rocks & sticks got caught between tire & chainstay. Ardent clearance was slightly better. Paint at chainstay yoke completely worn off after 2 rides.

    650b Mojo HD ... Heavy Duty-img_1845.jpg650b Mojo HD ... Heavy Duty-img_1846.jpg
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  66. #266
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    I have the Fox Float 34 160 for 650b...works great and does just what a good fork should do w/ no drama. seems plenty burly to me but I am not hucking big airs.
    my only complaint is i dont like the white color...
    Quote Originally Posted by murrdogg11 View Post
    Building up a mojo hd 650 from scratch.
    Trying to figure what's the best option for a fork.
    Fox 34 150mm 650b - lighter, no clearance issues
    Fox 36 talas (26") - less a2c height=lower bb, burlier
    Thoughts?
    Edit, the a2c numbers between those 2 forks are very simalir,
    Only 5mm difference, so that won't make a difference.

  67. #267
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    Quote Originally Posted by MTB hombre View Post
    I have the Fox Float 34 160 for 650b...works great and does just what a good fork should do w/ no drama. seems plenty burly to me but I am not hucking big airs.
    my only complaint is i dont like the white color...
    any chance you could measure your bb for me?

  68. #268
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    So I scored a used HD (135 x 12 rear axle & standard derailleur clamp) for a great price.I rode it for a week on my local trails built up as a 26. The guy I bought it from told me that a 170 fork was the magic number. I did 4 rides with a 160. After the first ride with the 170 fork I knew the 160 was never going back on. It's amazing. I found that running 35% sag worked best for me On the rear shock and my rear shock is a pushed RS Monarch RT. I plan on upgrading to a CCDBA. I brought the bike up to Big Bear for some down hilling on thirsday and rode things I have never been able to before. I am humbled by this bike.

    Being a 29er rider I want to convert to 650B asap. The bike is amazing as a 26er but with the smaller wheels I did feel the scary aspect of the wheel size. My question is I want to keep the fork set at 170. Any premonitions as to what problems I will run into? Also do I need to shim the rear shock. Any other comments?
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  69. #269
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    BB height measures out to be about 14 1/8" Fox Float 160 fork w Schwalbe Hans Dampf tires and about 25 psi
    Quote Originally Posted by murrdogg11 View Post
    any chance you could measure your bb for me?

  70. #270
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    Quote Originally Posted by MTB hombre View Post
    BB height measures out to be about 14 1/8" Fox Float 160 fork w Schwalbe Hans Dampf tires and about 25 psi
    That sounds pretty good! my reign x was around there and felt great...anyways, thanks! build kit and used frame in the mail.

  71. #271
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    Am I correct that 150 front travel probably is a better choice than 160 for my 650b HD, to better balance the rear travel on my shimmed shock?

  72. #272
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    Quote Originally Posted by OldManBike View Post
    Am I correct that 150 front travel probably is a better choice than 160 for my 650b HD, to better balance the rear travel on my shimmed shock?
    Probably not. A 150mm fork will have a shorter AC distance, OTOH the shock length stays the same, this will lead to a steeper HA and changes in handling. Honestly, if you keep your bike 160/160-10, you will not be noticing the shimmed shock unless you use the last 10mm of travel or bottom out frequently.

  73. #273
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    Re: 650b Mojo HD ... Heavy Duty

    I am running 170 XFusion Vengeance with 160 shimmed Marz Roco TST Air rear with 27.5 and its perfect! I too was in Big Bear last weekend and had a blast for two days on the new trails they added to the park...good stuff!

    Sent from my DROID RAZR HD using Tapatalk 2

  74. #274
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    Quote Originally Posted by StiHacka View Post
    Probably not. A 150mm fork will have a shorter AC distance, OTOH the shock length stays the same, this will lead to a steeper HA and changes in handling. Honestly, if you keep your bike 160/160-10, you will not be noticing the shimmed shock unless you use the last 10mm of travel or bottom out frequently.
    That makes sense, glad I asked. Thanks.

  75. #275
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    650b Mojo HD ... Heavy Duty-img_3294.jpg
    I've got my build started....
    Help me out, as I'm second guessing my fork!
    Basically i want a bike that climbs with the spandex guys and handles technical steep descents with drops and jumps.
    i've got the 160 shimmed in the rear....sooooo should i keep this 150mm pike or go with the 160mm dual air?

  76. #276
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    The bike was great at 160. It entirely comes alive at 170.
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  77. #277
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    Quote Originally Posted by spunkmtb View Post
    The bike was great at 160. It entirely comes alive at 170.
    are you running 27.5? what fork?

  78. #278
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    Quote Originally Posted by murrdogg11 View Post
    I've got my build started....
    Help me out, as I'm second guessing my fork!
    Basically i want a bike that climbs with the spandex guys and handles technical steep descents with drops and jumps.
    i've got the 160 shimmed in the rear....sooooo should i keep this 150mm pike or go with the 160mm dual air?
    You are going to run the bike steeper with a 150mm fork and a 160mm shock. Even if shimmed, the shock still measures 8.5" eyelet to eyelet.

    Vengeance HLR is a great 27.5 fork, just saying.


  79. #279
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    Quote Originally Posted by murrdogg11 View Post
    are you running 27.5? what fork?
    Fox 36 RC2 set at 170. No 27.5 option with that travel.
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  80. #280
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    Hoping some people can chime in instead of me reading the whole thread again. For the rear wheel am I limited to the 2.1 tire size? Have people noticed any significant disadvantages with the smaller tread size? Also with a 26" fox 36 fork are there any tires that I should stay away from? I ride in the Southern California area. Please specify front or rear tires when responding. Thanks ahead of time.
    Last edited by spunkmtb; 09-17-2013 at 05:56 PM.
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  81. #281
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    Quote Originally Posted by spunkmtb View Post
    Hoping some people can chime in instead of me reading the whole thread again. For the rear wheel am I limited to the 2.1 tire size? Have people noticed any significant disadvantages with the smaller tread size? Also with a 26" fox 36 fork are there any tires that I should stay away from? I read in the Southern California area.
    No. NeoMoto 2.3, Noby Nic 2.25 and Hans Dampf 2.25 all fit. I am not sure about Nevegal 2.3 - I think it might work as well, Nev 2.1 works.

  82. #282
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    Quote Originally Posted by StiHacka View Post
    No. NeoMoto 2.3, Noby Nic 2.25 and Hans Dampf 2.25 all fit. I am not sure about Nevegal 2.3 - I think it might work as well, Nev 2.1 works.
    Are these as front or rear tires?
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  83. #283
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    Quote Originally Posted by spunkmtb View Post
    Are these as front or rear tires?
    Rear tires.

  84. #284
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    26" x 160 or 650b x 140

    Someone help me out.

    I'm about to pull the trigger on an HD and I can choose the wheel size and travel. I've read all 12 pages of this thread, and I can't find an answer to my question:

    why are you guys knowingly giving up 20mm of travel?

    I just put in 4.5 years on a mojo C, and I've learned I like to huck. I have a 29er hard tail for XC. I don't race. I just want to get more confident clearing sketch gaps and dropping from high places. Right now ill do about 6' but that's it.

    My old mojo c is tired. I cooked a set of xt hubs 2 years back. The bearings dented the races. My frame makes a clunk noise because, according to my mechanic, I've bottomed the travel out too many times. I guess I like high top end as much as the next guy, but if I could ask just one more question:

    Which bike jumps (and lands) better?

    Do I just not have any business on a 650b bike with the same 140mm travel as my old mojo c? Ok, so thats two more Q's. Please, help me out.

  85. #285
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    If big jumps/gaps/drops are your primary concern i would think 26" 160mm would be best. Extra travel, bigger cushier rear tire. 27.5 is a better all rounder imo, and thats what i went with.

  86. #286
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    Quote Originally Posted by michaeld View Post
    Someone help me out.

    I'm about to pull the trigger on an HD and I can choose the wheel size and travel. I've read all 12 pages of this thread, and I can't find an answer to my question:

    why are you guys knowingly giving up 20mm of travel?

    I just put in 4.5 years on a mojo C, and I've learned I like to huck. I have a 29er hard tail for XC. I don't race. I just want to get more confident clearing sketch gaps and dropping from high places. Right now ill do about 6' but that's it.

    My old mojo c is tired. I cooked a set of xt hubs 2 years back. The bearings dented the races. My frame makes a clunk noise because, according to my mechanic, I've bottomed the travel out too many times. I guess I like high top end as much as the next guy, but if I could ask just one more question:

    Which bike jumps (and lands) better?

    Do I just not have any business on a 650b bike with the same 140mm travel as my old mojo c? Ok, so thats two more Q's. Please, help me out.
    Neither. Run 650b in 160 mm and shim the rear shock. Its way better for All moutain riding than running it at 140mm. Trust me I did both. If you are over 200 lbs like me you may prefer the Fox 36 or the outstanding new Pike. The new Pike is the best fork I have ever tried.

  87. #287
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    I'm interested to know if the new 27.5 continental trail king 2.2 will fit in the rear triangle of the hd....from what i remember its a pretty big tire.
    if anyone tries let me know.

  88. #288
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    What I am wondering is how many people who have converted to 650B already are planning on purchasing the new rear triangle.

    The peeps who aren't can you explain why. I am very much on the fence about this purchase and am wondering why or if it is necessary.

    Due to my broken arm I have not converted my HD yet. I have the parts but am saving it for when I can ride & wrench again to do the conversion.

    I am planning on running a 650B 2.25 ardent in the rear. I just don't know if its necessary or just vanity.
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  89. #289
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    Quote Originally Posted by spunkmtb View Post
    The peeps who aren't can you explain why. I am very much on the fence about this purchase and am wondering why or if it is necessary.
    For me, it is a lot of money for a little extra tire clearance. I run 160mm mode w/ a shimmed shock and a 160mm Vengeance / tall Angleset stack and big-ish front tires and the BB is over 14.5" high. I would also have to purchase rear hub conversions for my Hadley and Hope hubs since I have the older 135x12 rear triangle. That is over $700 for an upgrade that does nothing for my current biggest concern - a sky high BB.

    I think I'll save those $600 and wait for the next gen bikes. The Warden looks great, so does the Canfield Balance. I hope Ibis introduces a true competitor to Mach 6 with eccentric pivots, soon.

  90. #290
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    The 1.2million" BB height puts me off. I bought a Bronson instead.

  91. #291
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    for peeps that run 650b conversion in 160 mode shimmed makes new triangle little sense. you get more clearance at yoke but the triangle does not address limited travel, so the problem with tire rubbing seat tube will still be present. now you can limit shock more and run bigger tires, but at that point you are getting more into 140mm travel realm.

  92. #292
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    Quote Originally Posted by StiHacka View Post
    I run 160mm mode w/ a shimmed shock
    How do you shim the shock and have you ever had any problems with it?

    Regarding the BB height; if its the same geo as HD 140 (343mm bb) + 12.7mm, then its +3.7mm over the HD160 (352mm).

    3.7mm doesn't sound a massive difference or am i missing something?

  93. #293
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    Quote Originally Posted by Jamie_MTB View Post
    How do you shim the shock and have you ever had any problems with it?

    Regarding the BB height; if its the same geo as HD 140 (343mm bb) + 12.7mm, then its +3.7mm over the HD160 (352mm).

    3.7mm doesn't sound a massive difference or am i missing something?
    There are instructions for Mojo HD shock shimming on this site, see the picture below. The goal is to shorten the stroke so the rear wheel does not hit the seat tube when shock fully compressed.

    Re BB height: The geo is different between 140 (130 actually) and 160 HDs. 26" 160 HD's BB height is 13.8". Add .5" for 650b wheels, a little bit for taller A-C for 650b fork, a little bit for tall Angleset stack (both cups are external) and you get over 14.5" for 650b Mojo HD 160 easily.


  94. #294
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    You don't add 0.5" to the HD 160 geo, you add it to the HD140 which is 13.5", so that would make it 14".

    I'm not running an angleset and will be using a 26" fork not a 27.5, so I don't gain height there :-)

  95. #295
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    Quote Originally Posted by Jamie_MTB View Post
    You don't add 0.5" to the HD 160 geo, you add it to the HD140 which is 13.5", so that would make it 14".

    I'm not running an angleset and will be using a 26" fork not a 27.5, so I don't gain height there :-)
    By installing 650b wheels, you always gain .5" of BB height regardless of what bike or geometry you have, compared to 26" wheels. I run HD 160 with 650b wheels: 13.8 + .5 = 14.3" to start with.

    My BB height is closer to 14.7" with those additional little gains.

  96. #296
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    Quote Originally Posted by StiHacka View Post
    By installing 650b wheels, you always gain .5" of BB height regardless of what bike or geometry you have, compared to 26" wheels. I run HD 160 with 650b wheels: 13.8 + .5 = 14.3" to start with.

    My BB height is closer to 14.7" with those additional little gains.
    But we're not starting at 13.8, it's 13.5" (HD 140).

    from the ibis website "This swingarm will give you identical geometry to the Mojo HD 140. So if you're switching from 26" to 650b wheels, your bb height will grow approximately .5", depending on your tires"

    So if you take a 13.5" bb and add 27.5 wheels (0.5") = 14.0" bb.

    I don't see were you're getting 14.7 from or am i missing something obvious?

  97. #297
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    Quote Originally Posted by Jamie_MTB View Post
    But we're not starting at 13.8, it's 13.5" (HD 140).
    Stop right there. I ride HD 160 with 650b wheels.

  98. #298
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    Quote Originally Posted by StiHacka View Post
    Stop right there. I ride HD 160 with 650b wheels.
    Yes, but we're talking about the new swing arm and yourself & Rick Draper said it's got a sky high bb.

    I'm saying it hasn't (well i can't see it in my math), so you're giving duff information to spunkmtb?

  99. #299
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    Quote Originally Posted by Jamie_MTB View Post
    Yes, but we're talking about the new swing arm and yourself & Rick Draper said it's got a sky high bb.

    I'm saying it hasn't (well i can't see it in my math), so you're giving duff information to spunkmtb?
    How so? Many of us HD converts ride in the 160mm mode, the HDR swingarm works for both 130 and 160mm modes, but it does not solve our sky high BB problems. What am I missing here?

  100. #300
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    I am in for one. It's a one time deal so I never want to wonder what if I had done it. I have been running a hans dampf 2.35 in the front and love the tire. Compared to the neo 2.25 in the rear that wears really fast and leaks like a seive. I recently swapped the shimmed fox 8.5/2.5 for a legit 140 cane creek cs 7.87/2 and i have to say it blew me away. I dint miss the extra bit of travel now that i have a shock that can perform the way it is supposed to. For $600 to have a hardware update to the HDR is less than the difference between selling my frame and buying the HDR. Btw Call the people you bought the frame from and see if they will order it for you and give u a discount.
    650b-elieve

    Here's mine
    [url]http://forums.mtbr.com/ibis/murdered-ibis-mojo-hd3-980806.html[/

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