Bottom Brackets - GXP/BB30

dodgerdog Posts: 292
edited June 2011 in Workshop
I have SRAM Rival with the GXP chainset/BB.

How complex is it to swap to BB30 and will I get any noticeable benefit?
Allez Triple (hairy with mudguards) - FCN 4
Ribble Gran Fondo


  • sungod
    sungod Posts: 16,843
    unless you use adaptors (there are a few but reports seem to be mixed), you need a frame with a bb30 shell to fit bb30 bearings

    depending on the adaptors, you may then be losing the benefits of lower weight and lower q factor (assuming lower q factor is a benefit for you in bikefit terms)

    the larger diameter axle should be stiffer, but if the adaptors are less stiff than native bb30, even that may not count for much

    unless you've got a bb30 frame, i'd stick with traditional threaded bb
    my bike - faster than god's and twice as shiny
  • maddog 2
    maddog 2 Posts: 8,114
    as said, you'd need new everything - frame, chainset and BB
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • dodgerdog
    dodgerdog Posts: 292
    Cheers, guess I won't bother in that case then! :shock:
    Allez Triple (hairy with mudguards) - FCN 4
    Ribble Gran Fondo