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  • GXP and BB30 bbs
  • flowmtbguy
    Member

    Hopefully a quick Q.. but is there any difference for the cranks between a BB30 press fit BB and a regular one. I have an X1 chainset that came with a BB30 bottom bracket that I want to fit to a bike with a regular threaded 73mm bb shell – can I just buy a threaded GXP BB or will it require different cranks? I suspect it’ll be OK.

    Premier Icon sam_underhill
    Subscriber

    The spindles on the cranks are different.

    z1ppy
    Member

    Difference between cranks is BB30 is a 30mm axle and std shimano is 24mm (GXP crankset are 24mm tapering to 22mm?).
    Off-hand I’m unaware of any BB that will fit a BB30 crankset to std threaded BB shell, it’s normally the other way round that ppl want to do it.

    Premier Icon notmyrealname
    Subscriber

    Rotor make a BB which allows you to fit a BB30 crankset to a threaded HT2 frame.

    flowmtbguy
    Member

    boo. no new bike riding for me this weekend then.. cheers!

    Premier Icon benpinnick
    Subscriber

    Raceface do a BB that will take 30mm spindles in a regular BB shell too.

    z1ppy
    Member

    well you live and learn… 😀

    flowmtbguy
    Member

    ’tis ok. I will return these and wait for the right thing to come back.

    in the mean time I can ‘borrow’ my other chainset with a hope fat/thin chainring on there..

Viewing 8 posts - 1 through 8 (of 8 total)

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