ROLLCii external BSA bottom brackets are made in Taiwan from 6061-T6 aluminum and feature high-quality stainless steel or ceramic bearings, where available. We offer four different bearing sizes to help you fit your favorite crank to your favorite bike.

Note:

Installing 29mm spindle BSA bottom bracket parts requires the SRAM DUB WRENCH.

Installing 30mm spindle BSA bottom bracket parts requires the FSA MEGA EVO WRENCH.