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
– Spindle Interface Type: Shimano Hollowtech II
– BB Shell Width (mm): 68 , 73
– Bottom Bracket Shell I.D.: 1.37
– Defined Color: Black
– BB/Frame Interface: English
