TRIPEAK - Bottom Bracket  - Threaded - For Shimano Hollowtech II - 73mm shell width

This Tripeak Bottom Bracket  is a popular Shimano compatible bottom bracket. Its 24 mm Hollowtech II standard bearings deliver an optimal stiffness-to-weight ratio and rotational efficiency. Bottom bracket shells with BSA thread are 73 mm wide. Suitable for frames with (B.C.1.37" x 24T) English thread.