Fits 16 notch external bearing bottom bracket cups measuring 44mm diameter such as Shimano BB80, BB5700, XT BB70, BB51, and previous external bearing threaded cups. Also fits many external Threaded types for Campagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels, Token® and others.
