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.