Fit BSA Threaded (1.37 in x 24 TPI) bottom bracket shell with ID of 33.5-33.9mm and width of 68-73mm and crank spindle diameter of 24 mm (Shimano standard) or 22/24 mm (SRAM GXP standard). Please verify frame’s BB shell sizes and crank spindle diameter before purchasing.
Sealed bearings deliver reliable performance and long service life
O-rings to prevent water, dirt intrusion and achieve long service life
Note: a 16-notch, 44mm OD bottom bracket tool is required to install the BB. The tool is not included.
O-rings to prevent water, dirt intrusion and achieve long service life