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Compatibility of FSA gossamer crankset and Shimano BB-RS500 press fit

pastiepastie Posts: 39
edited March 2021 in Workshop
I'm hoping to fit FSA gossamer crankset from Synapse (with BB30a) into a Giant Defy with RS500 PF BB. Should this be compatible?? Thanks


  • joe_totale-2joe_totale-2 Posts: 1,333
    Nope as the FSA crank will have a 30mm axle and the Defy is BB86 meaning that it's only compatible with 24mm axles.

    You could change the bottom bracket to a BB86 one that accepts 30mm axles but there are several experts out there who say this is a bad idea due to the fact that narrow bearings have to be used.
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