CERAMIC BOTTOM BRACKET PRESSFIT PF4129 BB86 BB89.5 BB92 FOR SRAM DUB airbikeuk. AIR BIKE BB86/92 BOTTOM BRACKET Press Fit Shimano Hollowtech 24mm CRANK. Crank Type: Shimano Hollowtech II (24mm). BOTTOM BRACKET THREADED BSA 68-73MM Fits SHIMANO HOLLOWTECH II BB52 24mm BEARING.
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