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  • BB30 73mm english threaded and boost question
  • howsyourdad1
    Free Member

    Sorry to ask as I’m sure its been done before. ..

    a BB30 12 speed x01 crankset will fit in a 73mm BSA Threaded frame yes? as long as I use the right BB?

    also, are all 12 speed cranksets now boost? SRAM Crank X01 Eagle specifically

    many thanks

    Posted 6 years ago
    Rorschach
    Free Member

    BB30 12 speed x01 crankset will fit in a 73mm BSA Threaded frame

    No.
    (this is the 7th time I’ve answered the BB30/bsa question)

    Posted 6 years ago
    howsyourdad1
    Free Member

    succinct and to the point, thanks!

    Posted 6 years ago
    dovebiker
    Full Member

    Only the GXP version can be run with a 73mm BSA threaded shell

    Posted 6 years ago
    howsyourdad1
    Free Member

    Cheers thanks

    Posted 6 years ago
    greyspoke
    Free Member

    The boost/non-boost difference is achieved by using different chainrings (direct mount) or spiders (4 bolt). So for any type of BB fitment, the crank arms and axle will be the same.

    Posted 6 years ago
    paton
    Free Member

    http://www.hopetech.com/product/bottom-bracket-30mm-threaded/#tech

    Posted 6 years ago
    otsdr
    Free Member

    BB30 = shorter spindle, not just 30mm diameter.

    Posted 6 years ago
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