Wheels Manufacturing BSA Bottom Bracket – Shimano MTB ABEC-3 Bearings BLK Cups

Wheels Manufacturing BSA Bottom Bracket - Shimano MTB ABEC-3 Bearings Black Cups. Wheels MFG BSA Bottom Brackets for frames that accept English (BSA) threaded bottom brackets TECH SPECSBottom Bracket Shell I.D. 1.37BB/Frame Interface EnglishBB Shell Width