C-Bear BSA Shimano Ceramic Bottom Bracket

C-Bear BSA Shimano Ceramic Bottom Bracket The C-Bear BSA Shimano Ceramic Bottom Bracket is precision engineered in Belgium to deliver a super smooth interface between your frame and crankset. Ceramic bearings are machined with better accuracy to ensure lower friction with every revolution. With this premium bottom bracket, you can install your compatible 24mm spindle crankset to a frameset with a BSA threaded bottom bracket shell.