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  1. #1
    mtbr member
    Join Date
    Jun 2012

    HELP with BB Size

    OK I have a 2012 Giant XTC 2 29er and I am upgrading it over the winter and want to switch it to a 2X10 system but I have no clue what cranks to get for my BB shell. The BB says 71-41 so does that mean any crank and BB that fits a 68-73 41 will work? I ask this because I measured the housing on the outside and its 90MM does the measurement go from the inside where the cups rest?
    Giant XTC 2 29er
    KHS Flagstaff 29er FS
    Neon Bow Trials Bike
    Norco Fluid 9.2 29er FS

  2. #2
    mtbr member
    Reputation: Bike Whisperer's Avatar
    Join Date
    Aug 2012
    It's a Shimano press-fit, if you get a Shimano or X-Type compatible crankset you should just be able to swap out the crankset.

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