This Shimano Tiagra BB-RS500 Hollowtech II Bottom Bracket is reliable and smooth to help keep your drivetrain running fast and efficient.
Frame Interface: BSA/English Threaded
Spindle Interface: 24mm (Shimano Hollowtech II, FSA MegaExo, Surly OD, FSA MegaExo Light, RaceFace EXI)
Bottom Bracket Shell ID: 1.37
Shell Width: 68mm
This product is expected to become available for purchase on Friday, September 2, 2022