Shimano Ultegra SM-BB72-41B Press-Fit Bottom BracketPush-in bottom bracket cups to install Shimano Hollowtech road cranks on frames with standard BB86PressFit bottom bracket (86.5 x 41mm). Shimano Ultegra SM-BB72-41B Press-Fit Bottom BracketPush-in bottom bracket cups to install Shimano Hollowtech road cranks on frames with standard BB86PressFit bottom bracket (86.5 x 41mm).Valid for Shimano Hollowtech cranks both double and triple road ring (for mtb cranks use SM-BB71-41A)Weight: 63gr.