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  1. #401
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    Quote Originally Posted by Adroit Rider View Post
    Sounds like you have 73mm bottom bracket and are not using the preload adjustment properly.

    Before installing the non drive side crank through the bottom bracket, hand tighten the knob that will sit next to the non drive side bearing when inserted. Insert spindle, do not use that 10-12mm spacer, attach the drive side and then go back to that knob thing on non drive side to remove play. That knob is called preload adjuster and is the solution to your problem.
    Thanks, but without the spacer there is still play even with the preload adjuster knob at it's maximum extension.
    Photos from mountain biking in Nepal:
    bideshibiker.blogspot.com

  2. #402
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    Quote Originally Posted by RobRobideau View Post
    Thanks, but without the spacer there is still play even with the preload adjuster knob at it's maximum extension.
    http://cdn.sram.com/cdn/farfuture/Ab..._cranksets.pdf

    Then 10-12mm thing is not a spacer but an elastomer to preload the bearing. Look at the instructions above. Are you using a mallet to tap the drive side on? Are you torquing to correct level?

  3. #403
    Trail Ninja
    Reputation: Varaxis's Avatar
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    I have to say, that's a really impressive manual.

  4. #404
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    The piece I am referring to is the piece illustrated at the base of the yellow arrow and i believe it is metal.

    Sent from my Nexus 7 using Tapatalk 2
    Photos from mountain biking in Nepal:
    bideshibiker.blogspot.com

  5. #405
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    Well, just so happens that I will be in your area tomorrow afternoon and will take that defective crank off your hands for $25. Deal?

  6. #406
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    Quote Originally Posted by Adroit Rider View Post
    Well, just so happens that I will be in your area tomorrow afternoon and will take that defective crank off your hands for $25. Deal?
    Haha! In my area huh? Nepal? They actually got it fixed without any machining! I honestly have no idea what they were doing wrong, but it works fantastically now. I'll take it out on a real trail ride today, but there is a fairly steep hill(paved) on the way back home from the bike shop and I was carrying my 2-year-old son on my back. I never had to use the lowest gear. Super smooth, easy shifts, even under load.
    Photos from mountain biking in Nepal:
    bideshibiker.blogspot.com

  7. #407
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    Why? Mine works great, so does the set of RobRobideau (see post above) and muzzanic and I can name a few more...

    edit: nice pics on your blog Rob!

  8. #408
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    Got in a 1.5 hour trail ride with the new drivetrain and it works like a dream. Exactly what I was hoping for. Even while bouncing down bone-jarring rocky paths like this, no dropped chains or even chain slap.


    @betzel Glad you enjoyed the pics!
    Photos from mountain biking in Nepal:
    bideshibiker.blogspot.com

  9. #409
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    After >80km, I lost the chain for the first time and it was my own fault. A half-inch-diameter stick found its way into the drivetrain. Here are a few pics of it mounted on my Chinese carbon 29er hard tail.





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    Photos from mountain biking in Nepal:
    bideshibiker.blogspot.com

  10. #410
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    Has anybody had the xx1 long enough to comment on chain wear?

  11. #411
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    Quote Originally Posted by RobRobideau View Post
    After >80km, I lost the chain for the first time and it was my own fault. A half-inch-diameter stick found its way into the drivetrain.
    Rob, that's cheating and doesn't count as losing a chain in normal conditions. No, just kidding, seriously...I don't read something was damaged so lucky you! Would be a pity if you had to change de RD already....

  12. #412
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    You are right, it definitely doesn't count and I am blessed not to have any damage to spokes or components!

    Sent from my Nexus 7 using Tapatalk 2
    Photos from mountain biking in Nepal:
    bideshibiker.blogspot.com

  13. #413
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    In the past sticks have been the death of RD's for me, XX1 construction seems much sturdier, which direction did the chain suck in the woodwork (did it go through RD or not)?

  14. #414
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    I don't know exactly what route it took, but it ended up trapped between the spokes of the rear wheel and the rear derailleur. It took quite a bit of twisting, wiggling, and finagling to get it out. The rear derailleur had to have taken a decent hit.

    Sent from my Nexus 7 using Tapatalk 2
    Photos from mountain biking in Nepal:
    bideshibiker.blogspot.com

  15. #415
    human dehumidifier
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    Quote Originally Posted by Varaxis View Post
    I have to say, that's a really impressive manual.
    Tech writers are expensive, thus the price on the group.
    NFL will punish America for its sins with Katy Perry as the Super Bowl halftime show.

  16. #416
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    Quote Originally Posted by RobRobideau View Post
    I don't know exactly what route it took, but it ended up trapped between the spokes of the rear wheel and the rear derailleur. It took quite a bit of twisting, wiggling, and finagling to get it out. The rear derailleur had to have taken a decent hit.

    Sent from my Nexus 7 using Tapatalk 2
    So there is hope it wont get shredded on first contact with pine branches.

  17. #417
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    Got this funny little question that's been tickling my head for the past couple of weeks:

    What is Rotor going to do about XX1? Are they going to be able to come out with an elliptical Q-ring that will hold the chain on without a guide like SRAM's?

    I guess there are both practical and patent concerns to think about. Will Rotor (and/or all the other chainring manufacturers) be legally allowed to copy the tooth design that makes the front of XX1 so special?

  18. #418
    wrench
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    Quote Originally Posted by vapezilla View Post
    Has anybody had the xx1 long enough to comment on chain wear?
    I have a fair amount of time on a chain (since mid August) and it is doing just great. I am pretty good about cleaning it quite often but it has seen some abuse too. Since there were not many of these chains in early going, this particular one went through World Cup finals, training, Olympics, more training and World Champs then on to my bike for some more abuse and Iceman. Continues on today

    Sram does say it is their strongest chain they have ever manufactured. Time will tell. Building up my new Trek Superfly 100 SL this week with a new group. Can't wait to get out on it even if it is in the snow!!!!

  19. #419
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    Let us know what you think of the new frame too.

  20. #420
    wrench
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    Quote Originally Posted by limba View Post
    Let us know what you think of the new frame too.
    Sure will. If it is half as fantastic as the SL hardtail I have been riding, I will be on cloud 9!

  21. #421
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    I've been considering this drivetrain for the past few days, and I'd like to thank all of you for this enlightening thread !

    However, there is one question whose answer I can't find : could I go from a 28t chainring to a 32t without changing the chain ? Assuming that my primary chainring would be a 30t.

  22. #422
    Carbon & Ti rule
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    Quote Originally Posted by Noosphere View Post
    I've been considering this drivetrain for the past few days, and I'd like to thank all of you for this enlightening thread !

    However, there is one question whose answer I can't find : could I go from a 28t chainring to a 32t without changing the chain ? Assuming that my primary chainring would be a 30t.
    Yes Just. I have been told that it can cover 4 teeth difference. I haven't fitted my 28 yet but use the 30 & 32 with same chain no problems .

    In the grand skeem of things even if you couldn't what an extra chain.

  23. #423
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    I had the same question. I'd want a 36 or 38 tooth ring. So I'd put one of those on the crank, fit the chain and then keep the 32 around in case I go somewhere hilly or buy a 29er.
    These chains are supposed to last so if you did switch rings you could keep the old ring/chain combo together in case you switch back.

  24. #424
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    Quote Originally Posted by muzzanic View Post
    In the grand skeem of things even if you couldn't what an extra chain.
    Very true, not having to switch chains would just be less effort

    Thanks for the info.

  25. #425
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    Quote Originally Posted by Noosphere View Post
    Very true, not having to switch chains would just be less effort

    Thanks for the info.
    For that matter having 1 bike with 28 tooth & 1 with 32 tooth rings would be even less effort

    Thats if you don't count the extra effort it would take to make the money to pay for it.

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