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  1. #1
    mtbr member
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    XTR Crank spindle not long enough?

    I have a current generation Shimano XTR crank with a Trek Fuel EX 9.9 frame which utilizes a press fit bottom bracket BB95 (95mm).

    When I push the crank into the non drive side crank arm, it doesn't reach all the way to the stop. You can see the attached photos to see what I mean. There are no spacers installed, just a seal and the press fitted bearings.

    I double checked the bearings and they are more than flush to the BB shell.




  2. #2
    Team Captain
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    You're good.

  3. #3
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    I would guess that the space is there to leave room to preload the bearings with.

  4. #4
    www.4estbiker.nl
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    I'm running a XT (2012) crank on a BB92 which fits perfectly.
    I'm guessing the spindle is 3mm to short in your configuration.
    My bike is never the problem and can always be faster than I can...
    http://www.4estbikers.nl

  5. #5
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    Hard to tell from the pictures but I would say that is normal.
    Will the little plastic keeper that swivels on the pinch bolt drop into the hole?

  6. #6
    Plays with tools
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    Quote Originally Posted by ScaryJerry View Post
    You're good.
    2nd

  7. #7
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    Have you given the crank a good hard smack on the driveside to make sure its seated fully in the bearings?

  8. #8
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    So I basically removed both seals and tried again and it seats perfectly flush. Looks like the seals are causing this to happen. Obviously I re-installed the seals but dont know if I should try to further press in the bearings which I doubt will go in further

  9. #9
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
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    Quote Originally Posted by ScaryJerry View Post
    You're good.
    normally I'd agree, there is usually a bit of space left to allow for loading the bearings. but that does seem like an excessive amount..

    double check the cranks are seated all the way in on the drive side (may take a good wack to get it like stated above)

    are those new cranks or re-installing originals? if new you sure you got the right model,.. bla bla bla?

    It may just be the picture and distortion.. so as long at the 2 pinch bolts are over the spindle it's good. just don't want the pinch bolts clamping on the edge of the spindle or outside it.
    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  10. #10
    the catalan connection
    Reputation: What&son's Avatar
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    Quote Originally Posted by Slash5 View Post
    Will the little plastic keeper that swivels on the pinch bolt drop into the hole?
    This
    "Blessed is the man who, having nothing to say, abstains from giving us wordly evidence of the fact." George Elliot

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