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

The Shimano BB-MT501 delivers reliable performance for mountain bike drivetrain systems using Hollowtech II spindles. This English (BSA) threaded bottom bracket accommodates both 68mm and 73mm frame shells, making it compatible with most modern MTB frames. Sealed cartridge design minimizes dirt and moisture intrusion while maintaining smooth rotation and efficient power transfer. Aluminum threaded cups provide a lightweight, durable interface. A straightforward, dependable choice for riders seeking solid bottom bracket performance without complexity.