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  1. #1
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    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)

    While out riding the local power lines trails in my neck of the woods this AM, I found myself in my trusty 22-36 granny gear with more than enough "Ommmph" to ride strait up the face of the steepest (fall) line I am able to find, which is fairly steep for 20-30 yards. Also in the 4-5 inches of fresh "pow" we had on Monday AM, I found the same situation, and when I gravitated towards the 'easiest' (22-36) gear it made my riding and traction and momentum better. I have found pushing a bigger gear in snow can easily stop you in your tracks and then it is hard to get going again...

    So even though I have an "awesome" SRAM GX 1x Narrow Wide 30 tooth 175mm crank set and new BB 100mm BB waiting in the (new) parts bin, I am _VERY_ reluctant to install it on my fat bike, since I will loose a small percentage of gear ranges that I already have today with my 2x 22-32 crappy, heavy, generic crankset. Cassette is Shimano 11-36 10 speed with XT 10speed chain using XT Dynasys 10 speed RD with clutch. Also on the back of SRAM 30T 1x is says "SRAM CHAIN ONLY." WTF? Will it work with Shimano chain or NOT? And yes I have seen the OneUp 10-50 11 speed 500% conversion parts, but I don't have them....yet.

    Any opinions from the Fat Bike peanut gallery on this gearing dilemma (and actual facts from practical experience) are most certainly welcomed!!! Please share your FB drivetrain setup - photos welcome!

    Finally- please forgive my typos and spelling in advance...Thanks for any input...

    Peace Out!

    -Volksbike

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_1171.jpg Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-sm_xg_cassette_gold_12_speed.jpg Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-oneup-shark-10-50t-11-speed-casette.jpg
    Last edited by volksbike; 03-26-2016 at 03:55 AM.
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  2. #2
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    Man up!

    I just converted to 1x with a 34t up front. Shimano XT 11-36 is out back. I put it to the test this past weekend and did some significant climbs in the lowest gear without stopping or dabbing.

    Setup is Raceface Narrow/Wide ring, KMC X10 SL chain and Shimano XT 11-36 cassette.





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  3. #3
    turtles make me hot
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    My fat bike has 33 big ring, 26 granny and an 11-36 cassette. I used to have a 22 tooth granny but I was always going to the fourth cog on the XT cassette. Problem there is that cog only has five rivets and a smaller spider. I ended up stretching the rivets, thus ruining the cassette.
    I switched to the 26 to try and stay on the first three cogs and while it worked, I now don't have the oomph to get up this one insanely steep climb on my local trail. I just bought a 24, so maybe that'll be the perfect storm for me.
    I was going to try a single but I don't have chainline issues. Everything fits fine.
    I like turtles

  4. #4
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    Quote Originally Posted by prj71 View Post
    Man up!

    I just converted to 1x with a 34t up front. Shimano XT 11-36 is out back. I put it to the test this past weekend and did some significant climbs in the lowest gear without stopping or dabbing.

    Setup is Raceface Narrow/Wide ring, KMC X10 SL chain and Shimano XT 11-36 cassette.

    Sent from my SM-G900V using Tapatalk
    Nice setup with the Race Face!!! Thank you for sharing your real world experience.

    For the record I have made it through my local trail's entire ride running in 32 tooth mode without any issue, but not in deep snow or steep climbs. Just because its possible, there are some conditions that may warrant a lower gear??
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  5. #5
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    Quote Originally Posted by volksbike View Post
    Nice setup with the Race Face!!! Thank you for sharing your real world experience.

    For the record I have made it through my local trail's entire ride running in 32 tooth mode without any issue, but not in deep snow or steep climbs. Just because its possible, there are some conditions that may warrant a lower gear??
    Before the conversion last week I had a 36/22 chainring setup.

    Over this past winter I decided to experiment and used the 36t chainring for everything. I found it covered 98% of my riding. With that in mind I decided I would start by using a 34T. So far, so good.

    Sent from my SM-G900V using Tapatalk

  6. #6
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    Quote Originally Posted by prj71 View Post
    Before the conversion last week I had a 36/22 chainring setup.

    Over this past winter I decided to experiment and used the 36t chainring for everything. I found it covered 98% of my riding. With that in mind I decided I would start by using a 34T. So far, so good.

    Sent from my SM-G900V using Tapatalk
    Alright...I think you have finally convinced me to give it a try!! Now I'm just worried that the XT Dynasys chain won't work will with the SRAM 30 tooth cogs...I guess I could always use Race face narrow wide and KMC if I encounter any compatibility issues?

    Thanks again!! BTW- I rode my singlespeed 40 miles on the road this past weekend...
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  7. #7
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    Use what ever gearing makes you happy. If you use 22/36 on a regular basis, then why would you go 1x?

  8. #8
    turtles make me hot
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    Quote Originally Posted by l3eaudacious View Post
    Use what ever gearing makes you happy. If you use 22/36 on a regular basis, then why would you go 1x?
    Exactly. I built my son's fat bike with a 26 tooth NW ring up front and 11-36 cassette. Wasn't enough range for him. Ended up making it 22-32 front. Added 15 oz to the bike but now he makes it up more stuff and goes faster on the flats.
    I like turtles

  9. #9
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    Exactly, I hear you guys loud and clear! Hoping to avoid trial and error, but sometimes it works best...

    "If it ain't broke, don't fix it..."

    "Use it up, wear it out, make it do or go without..." Anonymous (Both arguments to keep the old 2x)

    Maybe it's the new and shiny crankset sitting in the bin just tempting me???

    Peace out,

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  10. #10
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    Assess how often you drop to the granny and if shifting speed is a factor. There are only a few cases where I need stump pulling power and the unboggable granny ratio. I run 32T 99% of the time with a 22T that I can manually shift to if need be. Otherwise I'm toting the weight of the 22T and 4 bolts the rest of the time. 2x or 3x crank needed. Mechanical shifting system optional.

  11. #11
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    Quote Originally Posted by bme107 View Post
    Assess how often you drop to the granny and if shifting speed is a factor. There are only a few cases where I need stump pulling power and the unboggable granny ratio. I run 32T 99% of the time with a 22T that I can manually shift to if need be. Otherwise I'm toting the weight of the 22T and 4 bolts the rest of the time. 2x or 3x crank needed. Mechanical shifting system optional.
    Spot on, great advice, thank you!! I was thinking this am that I hate my Alivio FD but it is a necessary evil and it works...Plus the mount pushes out the chainline (and tire clearance) by 1-2mm...
    Last edited by volksbike; 03-24-2016 at 12:40 PM.
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  12. #12
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    So where do I sign up for the Dilemma vs Granny pie eating contest?

  13. #13
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    Quote Originally Posted by prj71 View Post
    Man up!

    I just converted to 1x with a 34t up front. Shimano XT 11-36 is out back. I put it to the test this past weekend and did some significant climbs in the lowest gear without stopping or dabbing.

    Setup is Raceface Narrow/Wide ring, KMC X10 SL chain and Shimano XT 11-36 cassette.





    Sent from my SM-G900V using Tapatalk
    I can't imagine riding that kind of gearing where I live. I've got some 2+mile climbs that vary in grade and gravel/mud condition. I'm riding with a 24 raceface n/w and an 11/42 in the rear. Seems just about perfect for year round fun.

  14. #14
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    Quote Originally Posted by NYrr496 View Post
    Exactly. I built my son's fat bike with a 26 tooth NW ring up front and 11-36 cassette. Wasn't enough range for him. Ended up making it 22-32 front. Added 15 oz to the bike but now he makes it up more stuff and goes faster on the flats.
    my son (12)is riding a 36/22 f>>>11/36 r. He was able to ride anything this winter with that gearing and 100 mm's with Bud/Lou. We just rode into Santanoni and had a great time.

  15. #15
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    Quote Originally Posted by jonshonda View Post
    So where do I sign up for the Dilemma vs Granny pie eating contest?
    I guess after you show us how to bite into this pie? 10-50 tooth !!

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-oneup-shark-10-50t-11-speed-casette.jpg
    Last edited by volksbike; 03-24-2016 at 11:42 AM.
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  16. #16
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    I run a 28t cinch setup on the front, with a 10 speed 11/36 with a one up 42t in the back. For my area and terrain, it's a perfect set-up, and shifts flawlessly, and we have some big climbs here in the white mountains of NH.

  17. #17
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    It depends where you ride, but in my neck of the woods you need a stump puller, so I ride a 24 or 26 x 11-40. I didn't like the 42, but the 40 feels natural.

    Losing top end is no big deal, a fatty is not a cross bike, if you're going so fast that you run out of gears, you need to ride rougher terrain, seriously.

    A 32t doesn't fly here, but if you want one cheap, bike shops have stacks of them from take offs

    Oh, and if you are given a choice for crank length, get a shorter crank like 170mm or even a 165mm, you don't need a giant lever if you have the gears, and you'll gain some pedal clearance and improve efficiency.

  18. #18
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    I went 1x by putting a 30T NW chainring on the 104BCD outer ring of my Samox 2x crankset. I did remove the front derailleur, but left the granny ring (22 T) on. I can still manually move the chain over to the 22T if I need it. The only time I ever need it is deep snow, and man does it come in handy there!

  19. #19
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    1x11 here. 24 Raceface narrow wide up front Shimano 11-42 in the rear. No way I would go higher as I use the granny quite a bit.

  20. #20
    Jammin' Econo
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    Loving the GX 1x11 on my plus bike.

    Went 1x10 on my fattie with a Wolftooth 30 up front and 11-36 in the back. I may bump that up to a 40 at some point, but otherwise, I'm loving it. Say goodbye and good riddance to front derailleurs.

    And I live at 6200' and everything is "up" from there.
    Last edited by Smithhammer; 03-23-2016 at 07:10 PM.
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  21. #21
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    Quote Originally Posted by ADKMTNBIKER View Post
    I can't imagine riding that kind of gearing where I live. I've got some 2+mile climbs that vary in grade and gravel/mud condition. I'm riding with a 24 raceface n/w and an 11/42 in the rear. Seems just about perfect for year round fun.
    I live in WI. Can't say I have any 2 mile climbs but a good amount of punchy short climbs

    Sent from my SM-G900V using Tapatalk

  22. #22
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    My issue with fatbikes is wear. 11 speed 10-42 sram cassettes are ****ing expensive and like a guy in my group, wore his out in a season. Nice $500 cassette, i guess there is the cheaper gx cassette but its hard to find right now.

    10-42 sunrace 10 speed cassettes are cheap, xt 10-42 11 speed cassettes are cheap. $100 either from mec or crc for me as a canadian.
    Fatbike, XC bike, Gravel Bike....

  23. #23
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    Quote Originally Posted by prj71 View Post
    I live in WI. Can't say I have any 2 mile climbs but a good amount of punchy short climbs
    Fellow Cheesehead!!

  24. #24
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    26NW with 11-36 cassette on my Blackborow. I'm running clownshoes/4.8 tire year round and have lot of climbing. I have a Wolftooth 40T in my bin part that I'll probably try this summer. On my carbon 29er I have a 28NW/11-36 combo.
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  25. #25
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    I've got parts on the way to go 1x11. New shifter (SRAM), XT 11-42 cassette, and an Absolute Black elliptical 28 up front. Front Range, CO requires some low gears, and I never find myself riding on the road, so figured simpler is better. Will see how I like it in the next week or so.
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  26. #26
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    Riding 1 x 11 SRAM with a 28 up front and like the setup. Crank is e-thirteen and the smallest chainring they make is a 28, which I find a bit too high for some of our longer climbs. I dont have a problem running out of top end speed and would try a 26 or may be 24 on the front if the option was there.
    Your opinion of me is none of my business

  27. #27
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    Quote Originally Posted by jonshonda View Post
    Fellow Cheesehead!!



    Tried my new 1x setup at Levis Mound this past weekend.

  28. #28
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    Quote Originally Posted by prj71 View Post



    Tried my new 1x setup at Levis Mound this past weekend.
    Levis snow Mound now!!

  29. #29
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    Quote Originally Posted by jonshonda View Post
    Levis snow Mound now!!
    Yeah...no kidding. Cripes!!!

    Sunny and dry last Sunday...

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-levis.jpg

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-levis2.jpg

  30. #30
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    Quote Originally Posted by solarplex View Post
    My issue with fatbikes is wear. 11 speed 10-42 sram cassettes are ****ing expensive and like a guy in my group, wore his out in a season. Nice $500 cassette, i guess there is the cheaper gx cassette but its hard to find right now.

    10-42 sunrace 10 speed cassettes are cheap, xt 10-42 11 speed cassettes are cheap. $100 either from mec or crc for me as a canadian.
    This ^^, too much use on the low end wears out the most fragile parts, so big $$ for repairs. The Sunrace is a nice product, my buddy's shop stocks them, maybe a little more weight, but also more durable and longer lasting. I'd go this way next time.

    I use the Wolf 40t in back and a steel chainring up front, no need for NW, I have yet to lose a chain even when hitting jumps. I'd add a guard of sorts if the chain became a problem.

    I miss my front derailleur not at all, mine is sitting in a box along with the 2 x RF Cinch spider. Anyone want it?

  31. #31
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    Quote Originally Posted by Chinman View Post
    I went 1x by putting a 30T NW chainring on the 104BCD outer ring of my Samox 2x crankset. I did remove the front derailleur, but left the granny ring (22 T) on. I can still manually move the chain over to the 22T if I need it. The only time I ever need it is deep snow, and man does it come in handy there!
    Deep Snow = 22 teeth Granny!! --> I get it- We are speaking the same language!!!

    On my Pugs Ops I'm keeping the awesome range (and torque) of the Surly 36-22 OD 180mm Crankset for sure!
    Last edited by volksbike; 03-24-2016 at 01:20 PM.
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  32. #32
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    Where do I sign up for a cheap XT 11-42 cassette ? I've bought a couple off NB in Ohio and the largest size they have is 11-36 10 Speed. You must be talking 11speed, and that would reguire a new chain, shifter and RD...etc...


    And now there is a SRAM Eagle XX1, AKA the "ultimate slice of pie" 10-50 cogs - a Super Duper Gigantic (Gold Plated Apparently) TWELVE speed Cassette: SRAM Eagle XX1 Cassette in Gold - Mtbr.com Since it's gold plated, it looks like it would cost more than my bike!!!
    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-sm_xg_cassette_gold_12_speed.jpg
    Last edited by volksbike; 03-24-2016 at 07:42 PM.
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  33. #33
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    Quote Originally Posted by volksbike View Post
    Where do I sign up for a cheap XT 11-42 cassette ?
    Sunrace makes 10spd in 11x42 for about $60.

  34. #34
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    Quote Originally Posted by bme107 View Post
    Sunrace makes 10spd in 11x42 for about $60.


    Sounds like I'm on it...Will try the 30T 1x11 with the 11-36 first and see if I really need the 11-42...Thanks!
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  35. #35
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    Quote Originally Posted by bme107 View Post
    Sunrace makes 10spd in 11x42 for about $60.
    Have one, not so impressed with the Sunrace cassette.

    - Rusted like Barnacle Bill's treasure chest
    - Runs as smooth as a rock tumbler
    - Black finish has peeled off as fast as can be in any wear areas

    I have XT 11 speed on my other bike and very much look forward to wearing this Sunrace cassette out so I can justify a drivetrain replacement.

  36. #36
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    Quote Originally Posted by hybris View Post
    Riding 1 x 11 SRAM with a 28 up front and like the setup. Crank is e-thirteen and the smallest chainring they make is a 28, which I find a bit too high for some of our longer climbs. I dont have a problem running out of top end speed and would try a 26 or may be 24 on the front if the option was there.
    Not sure which e-thirteen cranks you have but I installed a Raceface 24 tooth n/w 64 bcd on my wifes bike and it has e-thirteen cranks. Hers was a 2x10 originally. It's the same ring setup that came stock on my Blizzard.

  37. #37
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    Narrow Wide SRAM/Shimano Compatibility??

    With all the references to NW (Narrow Wide?) I'm trying to see if anyone has used the new SRAM GX 30T NW ring (94 BCD) and if they indeed require a SRAM chain instead of Shimano XT 10 Speed DynaSys Chain?? Back in the day SRAM components were compatible with Shimano and could easily be mixed and matched...
    Here is a close-up shot of the back of the SRAM GX 30T NW cog with the words "SRAM CHAIN ONLY" again WTF and why ??? Meanwhile the XT DynaSys 10 speed Clutch RD I'm running only uses/likes Shimano Chains !! lol

    Thanks in advance for any logical explanation of the movement towards proprietary brand specific compatibility... What happened to KISS ??

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_1241.jpg Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_1242.jpg
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  38. #38
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    Quote Originally Posted by volksbike View Post
    With all the references to NW (Narrow Wide?) I'm trying to see if anyone has used the new SRAM GX 30T NW ring (94 BCD) and if they indeed require a SRAM chain instead of Shimano XT 10 Speed DynaSys Chain?? Back in the day SRAM components were compatible with Shimano and could easily be mixed and matched...
    Here is a close-up shot of the back of the SRAM GX 30T NW cog with the words "SRAM CHAIN ONLY" again WTF and why ??? Meanwhile the XT DynaSys 10 speed Clutch RD I'm running only uses/likes Shimano Chains !! lol

    Thanks in advance for any logical explanation of the movement towards proprietary brand specific compatibility... What happened to KISS ??

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    Its bs. You can miss match sram and shimano all day aslong as its the right chain for the number of cogs out back.
    Fatbike, XC bike, Gravel Bike....

  39. #39
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    Finally Made the 1x Fat Bike switcheroo...Done!!

    So I finally broke out the tools and with some effort, luck and even despite stupid mistakes, I was able to remove the 2x Crank (Note to self --> always remove the crank bolts before using the crank puller, otherwise it will strip the crank threads (twice) ask me how I know this...) also removed the Bottom Bracket, Front Derailleur, FD mount, cable, housing and shifter. Somehow the 100mm bottom bracket seemed like it weighed quite a bit...No grease was used in the GBM frame assembly process, so it required so force to remove the BB cups, remember righty tighty, lefty loosy EXCEPT on the drive side BB cup where it is reverse threaded (like the left pedal) so you actually turn it in the direction to tighten it when you want to remove it...nice! Thanks Jeff at the LBS for the timely information!!

    Anyway it's done, the bike runs great the XT Clutch RD holds the XT 10 spd chain on the SRAM 30T NW ring great and the bike absolutely rips!!! Field Tested with my dogs on a local ride at dusk... I did find a couple sections where I gravitated to the 30-36 new granny gear and it was just enough to get 'er done...so far, SO GOOD!

    I lost a few lbs on a bike that was pushing 40 pounds, with the 1x upgrade and RD rims, Northpaw hubs, and a Surly Pugs Ops (Moonlander) fork, my GBM has slimmed down to 34.5 lbs with a GoPro Hero and frame Pump included!! I rides like a different bike, no chain drops yet and plenty of low end for my local trails. Also I don't miss shifting the FD at all, a cleaner look and feel overall to the entire bike. 1x is like a singlespeed in front with 10 options for gears...lol!

    Thanks for all the great insight from fellow Fat Bikers and encouragement to pull the trigger (Man Up was the 1st and my favorite response, thanks prj71 !!) and try this new 1x set up!!!

    BTW - Happy Easter weekend to All...

    Peace Out!

    -Volksbike

    ---Some photoz of the finished product, chainline & Park tools which made the entire process doable using the correct tools...I had to drill out the rivet in the Alivio FD to avoid breaking the XT DynaSys Chain since it did not provide a screw...fun times for sure!

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_1274.jpg Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_1280.jpg Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_1276.jpg Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_1275.jpg
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    I'm running a 32 front with an 11-36 SRAM cassette with a WT 42 added. It is just fine for the rides that I do here in CO. This is only my winter/snow bike. If the trails are dry I have a trail bike to ride. There are some things that I have to push up but if the snow is to deep that's what happens.

    So far so good. All of this depends on where you live. I ended up ditching my 1x on my trail bike to go back to 2x10 for all day backcountry rides.
    Proud Tribe member since 1992 - looking for better singletrack to be ridden year round

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    Quote Originally Posted by yetirich View Post
    I'm running a 32 front with an 11-36 SRAM cassette with a WT 42 added. It is just fine for the rides that I do here in CO. This is only my winter/snow bike. If the trails are dry I have a trail bike to ride. There are some things that I have to push up but if the snow is to deep that's what happens.

    So far so good. All of this depends on where you live. I ended up ditching my 1x on my trail bike to go back to 2x10 for all day backcountry rides.
    Great Advice.. May try the WT 42 cog but for now I don't need it would have to justify the cost. Keeping the 36-22 2x on my Puga Ops as my stump puller...Thanks again!

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    I use my fat bike for everything from 40 mile, 16 mph avg rides on groomed gravel to 4 mph plowing through singletrack snow. In the former I'm never out of the 36 (and usually pretty far to the right on the cassette), in the latter I'm never out of the 22. For me, a 1x might work but not as well as a 36-22. IMO, if you use both chainrings, there's no reason to switch.

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    Quote Originally Posted by hiro11 View Post
    I use my fat bike for everything from 40 mile, 16 mph avg rides on groomed gravel to 4 mph plowing through singletrack snow. In the former I'm never out of the 36 (and usually pretty far to the right on the cassette), in the latter I'm never out of the 22. For me, a 1x might work but not as well as a 36-22. IMO, if you use both chainrings, there's no reason to switch.
    Thanks - well said- I will always run the Surly 180mm 36-22 OD on my Surly Pugs for both 29+ and 26x4.0!!

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_0541.jpg

    So far for my area (Central MA) 1x is good for the trails...
    Last edited by volksbike; 03-28-2016 at 05:08 AM.
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    Another aspect to the title of this thread:
    Anyone here ever freeze up shifter cables? Particularly the FD? Thought with all the snow maybe the front is not so reliable?

    Maybe 1x or 2x manual front shift is the way to go... Or maybe a non-issue...

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    Quote Originally Posted by hybris View Post
    Riding 1 x 11 SRAM with a 28 up front and like the setup. Crank is e-thirteen and the smallest chainring they make is a 28, which I find a bit too high for some of our longer climbs. I dont have a problem running out of top end speed and would try a 26 or may be 24 on the front if the option was there.
    I would just e-bike it.
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    Quote Originally Posted by Kirkerik View Post
    Another aspect to the title of this thread:
    Anyone here ever freeze up shifter cables? Particularly the FD? Thought with all the snow maybe the front is not so reliable?

    Maybe 1x or 2x manual front shift is the way to go... Or maybe a non-issue...
    Yep, in Arizona.

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-dscn1421.jpg

    In alaska, usually operating below the freezing point, I've never had a cable freeze up.
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

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    Quote Originally Posted by Jayem View Post
    Yep, in Arizona.

    Click image for larger version. 

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    In alaska, usually operating below the freezing point, I've never had a cable freeze up.
    Cool pic from AZ. I never froze my shifter cables riding all winter this year. Coldest day was only down to -15 (not Alaska cold) but I have frozen up my front and rear brake cables several times- Even when temps were only slightly below freezing. It also depends if you store your bike inside in a heated area or outside in the cold.

    Update on my 30T NW 1x 11-36 setup: I absolutely love it !. The combination with an XT clutch RD works great - smooth shifting and virtually no chain drops ! As far as the gearing, my 30 - 36 is fine for my local terrain in 99% of riding situations. Only once this year climbing in 4 inches of wet spring snow did I run out of years and have to walk. 1x is better than I expected and easier to keep clean without multiple chain rings and a FD cage in the way. Overall great for trail riding and short to mid range road jaunts. Definitely worth considering if you are on the fence.

    Peace out

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    I know a guy who swears by a 28 or 30 tooth oval chain ring. I might try one out.

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    Quote Originally Posted by Jayem View Post
    I would just e-bike it.
    Apparently the little ones that fit in the seat tube are Very popular in Europe at the minute.

    Waiting for SRAM to put out a fat crank with direct mount, match it with a 24 or 26 tooth stainless chainring. Then it will be an e-less bike, beauuuutifull
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    Quote Originally Posted by robertdavid View Post
    I know a guy who swears by a 28 or 30 tooth oval chain ring. I might try one out.
    I just converted to a 1x11 (11/42), setup running an Absolute Black 28t oval front ring and it is fantastic. Worth investigating if I were you. Spin seems very natural and it feels like I have more traction in loose stuff. I'm sold.
    Attached Thumbnails Attached Thumbnails Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-image.jpg  

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    Looks like a nice setup, Volksbike!

    I know it's a single but are there bosses on the spider for a 58bcd ring? Have to be drilled and tapped but sometimes the blanks are there.

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    They do!

    Quote Originally Posted by hybris View Post
    Apparently the little ones that fit in the seat tube are Very popular in Europe at the minute.

    Waiting for SRAM to put out a fat crank with direct mount, match it with a 24 or 26 tooth stainless chainring. Then it will be an e-less bike, beauuuutifull
    I think the Sram X9 crankset can be run w/ an aftermarket direct mount ring in place of the spider. Also the older fat spaced xx1 too!

    I was hoping to see the GX w a removable spider...

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    Quote Originally Posted by hybris View Post
    Waiting for SRAM to put out a fat crank with direct mount, match it with a 24 or 26 tooth stainless chainring. Then it will be an e-less bike, beauuuutifull
    It looks like the GX single or Double spider also is removable to go with a 1x ring.

    Also the XX1 168 Q factor may fit your fatty! But i wonder of the durability of a carbon crank... At that price anyways.

    Hope this helps

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    Quote Originally Posted by Kirkerik View Post
    Looks like a nice setup, Volksbike!

    I know it's a single but are there bosses on the spider for a 58bcd ring? Have to be drilled and tapped but sometimes the blanks are there.
    I don't think there are bosses for 58 BCD....will check and confirm.
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    No worries, i see now they also make a double in the GX.

    Thanks

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    Quote Originally Posted by Kirkerik View Post
    It looks like the GX single or Double spider also is removable to go with a 1x ring.

    Also the XX1 168 Q factor may fit your fatty! But i wonder of the durability of a carbon crank... At that price anyways.

    Hope this helps
    Thanks for the information. SRAM web site is light on for detail about the direct mount fat bike options.
    Have similar concerns about the durability of carbon cranks, particularly form pedal strikes. Not to mention the price.
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    Quote Originally Posted by Kirkerik View Post
    No worries, i see now they also make a double in the GX.

    Thanks
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    Oh, i should have mentioned, the above pic is a GX 1000 series with spider fixed to crank. My references above are about the GX 1400 cranks. They have the removable spiders...

    I think I'm going to pick up a set of the GX 1400 Double and swap out the spider to a wolftooth stainless 24t or 26t direct single. Im digging the steel 24mm axle and if i want to run double i can just swap it out again.

    These are also pretty much same weight as the RF Cinch Turbines provided they both have same direct mount chainring.

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    Quote Originally Posted by volksbike View Post
    This is the GX 1000 crank w fixed spider as you can see. As far as the granny ring mounts in the back, i bet it has four bosses cast in to the spider for the chainring bolts like on the 2X but these are not drilled and tapped to save some $ in manufacturing.

    If you had access to a drill press and the right drill and tap you could convert in to a double. I don't know where the change in chainline is between the 1X and 2X cranks. Maybe spacers, castings? IDK

  61. #61
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    Quote Originally Posted by Kirkerik View Post
    This is the GX 1000 crank w fixed spider as you can see. As far as the granny ring mounts in the back, i bet it has four bosses cast in to the spider for the chainring bolts like on the 2X but these are not drilled and tapped to save some $ in manufacturing.

    If you had access to a drill press and the right drill and tap you could convert in to a double. I don't know where the change in chainline is between the 1X and 2X cranks. Maybe spacers, castings? IDK
    No castings or bosses on SRAM 1x Confirmed it works great with XT 10 speed Dynasys Shimano chain - no drops...Against SRAMs advice...

    Last edited by volksbike; 04-25-2016 at 09:51 AM.
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    Quote Originally Posted by hybris View Post
    Thanks for the information. SRAM web site is light on for detail about the direct mount fat bike options.
    Have similar concerns about the durability of carbon cranks, particularly form pedal strikes. Not to mention the price.
    The directions that come with most of the drive train components from Shimano and SRAM are pretty lacking as well!

    Just the standard injury stuff and then a reference to a professional installer. First time 'round I left off spacers on the 100mm BB !

    Then a couple of week later I noticed my bearing races naked and not covered by the washer. Went to LBS and asked whats up. Then hadn't seen it b4 either, but recommended that I try it again, this time with the spacers. Worked like a charm and even brought my chain line in a little which I needed. Will add a picture of the SRAM BB spacers (basically big washers) that go inside the BB bearing cups. Other that the mud, sane, ice and H20 in my bearings, all is good now!!!

    -VB
    Last edited by volksbike; 04-26-2016 at 08:36 AM.
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    I've been running an E*thirteen 9-44 cassette with a RF cinch setup that I alternate among 26,28, 30 and 32 chain rings depending on what I'm up to. If you could swing it it seems ideal, I'm able to change the chain ring in a couple minutes. I've even changed one during a ride once when me knee started acting up as I expected it to, having brought the smaller ring in anticipation.

    So far the 9-44 is going great with a few hundred miles on it

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    Quote Originally Posted by Nefariousd View Post
    I've been running an E*thirteen 9-44 cassette with a RF cinch setup that I alternate among 26,28, 30 and 32 chain rings depending on what I'm up to. If you could swing it it seems ideal, I'm able to change the chain ring in a couple minutes. I've even changed one during a ride once when me knee started acting up as I expected it to, having brought the smaller ring in anticipation.

    So far the 9-44 is going great with a few hundred miles on it
    Thanks will check it out. Right now I have 3 11-36 10 spd XT cassettes. So I have some pedaling to do b4 I wear these out....

    Here is a close up pic of the GX 1x BB. Note the spacers just inside each bearing cup...you need these to run this crank.

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    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-image.jpg

    This is what i meant by chainring bolt bosses. Whether drilling them out (if one had them) is worth it or not is entirely up to the skill and availability of tools on hand of the user, of course.

    Also the pictured crank allows the exchange of spider or direct mount chainring by removing the three Torx bolts.

    Nice to hear the 10spd chain is working nicely! I plan on running 9spd cogs and a 40T or 42T cog with mine though maybe a 10spd chain.

    Kirk

  66. #66
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    Quote Originally Posted by Nefariousd View Post
    I've been running an E*thirteen 9-44 cassette with a RF cinch setup that I alternate among 26,28, 30 and 32 chain rings depending on what I'm up to. If you could swing it it seems ideal, I'm able to change the chain ring in a couple minutes. I've even changed one during a ride once when me knee started acting up as I expected it to, having brought the smaller ring in anticipation.

    So far the 9-44 is going great with a few hundred miles on it
    You have to remove the crank arm to swap a chaing ring, right? Nice option, even trailside. Why not?

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    Quote Originally Posted by Kirkerik View Post
    You have to remove the crank arm to swap a chaing ring, right? Nice option, even trailside. Why not?
    Correct, Drive side (actually both) Crank arm comes off with and 8mm allen (I carry a properly large one in my pack) and the retaining nut comes off with a free hub nut tool thingy. I don't usually take all of this; only when I go exploring a new place that looks like i may spend a couple hours climbing steep stuff. Mostly though lately I just run the 26, with the 9 tooth out back it'll go like 27-28 mph and I like that most of the time I'm smack in the middle of the cassette

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    Nice, i was thinking of running the 26T or even the 24T SS Woftooth chainring upfront depending on what my chainline is going to be w that...

    Nice to have that granny on the fatty, and i can roll when i pedal out.

    Or i can get the North Shore 104/64 double but it's for Sram Cranks.
    2 x10 104 BCD Spider for SRAM Cranks | North Shore Billet

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    Quote Originally Posted by Kirkerik View Post
    Or i can get the North Shore 104/64 double but it's for Sram Cranks.
    2 x10 104 BCD Spider for SRAM Cranks | North Shore Billet
    RF has that too Race Face 2x Cinch Crankarm Spider 104BCD

  70. #70
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    Quote Originally Posted by volksbike View Post
    Then a couple of week later I noticed my bearing races naked and not covered by the washer. Went to LBS and asked whats up. Then hadn't seen it b4 either, but recommended that I try it again, this time with the spacers. Worked like a charm and even brought my chain line in a little which I needed. Will add a picture of the SRAM BB spacers (basically big washers) that go inside the BB bearing cups. Other that the mud, sane, ice and H20 in my bearings, all is good now!!!
    Thanks VB
    Did the spacers come with the 100 mm GXP bottom bracket or do you have to purchase separately.
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  71. #71
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    Quote Originally Posted by Kirkerik View Post
    Nice, i was thinking of running the 26T or even the 24T SS Woftooth chainring upfront depending on what my chainline is going to be w that...
    Still leaves me unsure about chainline with SRAM cranks. With 197 hub, my ethirteen cranks I wouldn't have the chain clearance to run a 4.8 tyre. To run a wide tyre the RF 190mm cranks seem to be the better option.


    Found these figures for crank width:
    surly crank = 214q
    Cinch / next sl 190mm =222q
    Cinch / next sl 170mm =202
    E13 trs = 197q (i think..)
    Hollowcore / cannondale = 198q/204q
    Samox = 217q
    Sram xx1 = 201q

    Some 1x cranks allow the chainring to be flipped which will improve the chainline if running 197 hub. Do you know if this is an option with SRAM cranks? The Wolftooth chainring has a 6 mm offset

    The link below is an explanation of fat bike chainline optimisation that I found useful.

    http://cdn.shopify.com/s/files/1/023...on_v2.pdf?1305

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  72. #72
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    Quote Originally Posted by hybris View Post
    Thanks VB
    Did the spacers come with the 100 mm GXP bottom bracket or do you have to purchase separately.
    The spacers came with the SRAM GX 1x Bottom Bracket...
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    Quote Originally Posted by hybris View Post
    Still leaves me unsure about chainline with SRAM cranks. With 197 hub, my ethirteen cranks I wouldn't have the chain clearance to run a 4.8 tyre. To run a wide tyre the RF 190mm cranks seem to be the better option.


    Found these figures for crank width:
    surly crank = 214q
    Cinch / next sl 190mm =222q
    Cinch / next sl 170mm =202
    E13 trs = 197q (i think..)
    Hollowcore / cannondale = 198q/204q
    Samox = 217q
    Sram xx1 = 201q

    Some 1x cranks allow the chainring to be flipped which will improve the chainline if running 197 hub. Do you know if this is an option with SRAM cranks? The Wolftooth chainring has a 6 mm offset

    The link below is an explanation of fat bike chainline optimisation that I found useful.

    http://cdn.shopify.com/s/files/1/023...on_v2.pdf?1305

    Tony
    Thanks Toni,
    The Q-factor on the Gx 1400 cranks is similar to their other Fat offerings: 203.5
    The chainline is 66.5mm which is the same as their other Fat cranks.

    I beleive the offset 6mm chainring can be flipped. At least i heard reference of that at Wolftooth to change the chainline.
    Wolftooth also offers a chainring that has no offset for a difference of 3mm

    I plan on running a pair of Sram GX 1400 fats as 1x on a 907 frame w 190/197 rear spacing. I might be able to get it to run 2x if i just place and space out 5,6 or 7 cogs instead of a full 9,10 or 11 speed cogset.

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    Here is a link to the Wolftooth BB30 ring that changes chainline 3mm as opposed to 6.

    Direct Mount for SRAM BB30 Short Spindle Cranks, boost chainring ? wolftoothcomponents.com

  75. #75
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    Quote Originally Posted by Kirkerik View Post

    I plan on running a pair of Sram GX 1400 fats as 1x on a 907 frame w 190/197 rear spacing. I might be able to get it to run 2x if i just place and space out 5,6 or 7 cogs instead of a full 9,10 or 11 speed cogset.
    Thanks for the info.
    Would appreciate an update when you try the GX 1400 as 1x.
    Flipping the 6 mm offset chainring will move the chainline 12 mm outwards, if there is room against the crank. The 3 mm you suggest sound more workable but doesn't have the range of sizes of the 6mm
    Personally I wouldn't go back to 2x. Just need to get the low end speed a bit slower and I will be fine.
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  76. #76
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    Sram Gx 1400 fat crank chainline

    Quote Originally Posted by hybris View Post
    Thanks for the info.
    Would appreciate an update when you try the GX 1400 as 1x.
    Flipping the 6 mm offset chainring will move the chainline 12 mm outwards, if there is room against the crank. The 3 mm you suggest sound more workable but doesn't have the range of sizes of the 6mm
    Personally I wouldn't go back to 2x. Just need to get the low end speed a bit slower and I will be fine.
    So i finally got my parts and fat ride together! Woo hoo! Sorry for the wait.

    Here is the Wolftooth 1X GXP chainring w the 6mm offset on my '15 9:zero:7 Whiteout:

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-image.jpg
    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-image.jpg
    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-image.jpg

    The GXP 6mm offset ring will NOT fit flipped as the ring hits the crank. I beleive the BB30 SS 3mm offset version will mount up either way, flipped or not
    Last edited by Kirkerik; 02-08-2017 at 11:24 AM. Reason: Spelling

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    That is a 24T ring. Obviously changing where the bottom bracket spacers are can move your chainline 2.5mm either way.

  78. #78
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    Quote Originally Posted by Kirkerik View Post
    That is a 24T ring. Obviously changing where the bottom bracket spacers are can move your chainline 2.5mm either way.
    Kirkerik - Is that 11 speed in the back? 11-42T? It looks like you have lots of gears to work with! How do you like it so far?

    I'm running a 30 tooth with 11-36 10 speed pushing JJ 4.8s but thinking of dropping down to 28T or smaller oval for the front ring. Chainstay Clearance is tight on my setup and I could use a few more granny gears for the snow that just arrived! I'm also hesitant to double up with the spacers on the drive side...but it looks like it might work...







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  79. #79
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    Ice Age trails?

  80. #80
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    yup 1x is needed when the wooly mammoths start chasing you. Uncle Gomez told me so.
    Quote Originally Posted by endo_alley View Post
    Ice Age trails?
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    ptarmigan hardcore

  81. #81
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    Quote Originally Posted by volksbike View Post
    Kirkerik - Is that 11 speed in the back? 11-42T? It looks like you have lots of gears to work with! How do you like it so far?

    I'm running a 30 tooth with 11-36 10 speed pushing JJ 4.8s but thinking of dropping down to 28T or smaller oval for the front ring. Chainstay Clearance is tight on my setup and I could use a few more granny gears for the snow that just arrived! I'm also hesitant to double up with the spacers on the drive side...but it looks like it might work...







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    I love it. It is working well in all gears. I have a 24T up front and a 10speed sunrace 11-42 w an 11speed xt rear deraileur. Saint 10x shifter. The 24T is plenty faste nough in the snowy season. Where i pedal out gravity takes over just fine. I'll swap rings to something bigger for the summer, maybe.

    My chainline in front is ~66.5mm from centerline of BB.

  82. #82
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    Oh, the 24T i put on is a Wolftooth Stanless steel w standard 6mm offset. I forgot the pic was of a 30T.
    I would definately recommend going smaller in front.

    Here is a pic from the 2016 Sram mtb drivetrain frame fit spec manual on the 1400 fat crank:
    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_0242.jpg

  83. #83
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    Maybe this is more legible:

    Dilemma -> Pie Plates Vs. Granny Gears on Fat Bikes (AKA Fat Bike Gearing options...)-img_0243.jpg

  84. #84
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    Great info thanks!!


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