BB-MT501 English Bottom Bracket - English, 68/73mm, Fits Hollowtech II Spindle, Black

The 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