BB-MT501 English Bottom Bracket - English, 68/73mm, Fits Hollowtech II Spindle, Black cable kit Works best if used within

Works best if used within two hours

Reflective elements and a rear light bracket provide greater visibility even when out riding at dusk

4 works on nearly any bike including multi-speed

and sit bone pressure is significantly reduced – allowing you to be fully in sync with your bike

BB-MT501 English Bottom Bracket - English, 68/73mm, Fits Hollowtech II Spindle, Black cable kit Works best if used withinThe Shimano BB MT501 bottom bracket for Hollowtech II provides better sealing and rotation to delivery high driving efficiency. English (BSA) threaded bottom bracket Fits 68 and 73mm frame bottom bracket shells For use with MTB Aluminum threaded cups