Shimano BB-MT501 68/73mm Threaded Bottom Bracket (MTB)

Replacing the SM-BB52, this new BB-MT501 bottom bracket provides better sealing and rotation to delivery high driving efficiency.

• English (BSA) threaded bottom bracket
• Fits 68 and 73mm frame bottom bracket shells
• Shimano Hollowtech II spindle interface
• For use with MTB, 24mm spindles
• Aluminum threaded cups

ITEM NUMBER: BB-MT501