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  1. #1
    mtbr member
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    SRAM XX ring GXP vs BB30

    What is the difference between a 39th GXP and 39th BB30?
    Can I use a 39th GXP on a BB30 crank??

    Thanks

  2. #2
    mtbr member
    Reputation: Alexgonzalezmi's Avatar
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    The qfactor of the cranks are different but that has no bearing in the rings so you could use them as they are the same.

  3. #3
    I'm Slow
    Reputation: paulrb02's Avatar
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    XX Chainring Questions & Swap with a X.0 Chainring Possible?

    Basically its the outside pin, its different because of the different Q-factors
    RideSAMBA.com Mountain Biking in South Alabama.

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