Shimano BB-MT501 English Bottom Bracket - English, 68/73mm, Fits Hollowtech II Spindle Dallas Cage Material: Injected Nylon/Glass Fiber

Cage Material: Injected Nylon/Glass Fiber (Vise Cage)

foam disc and cap

Sole: ForceDrive™ nylon midsole with rubber outsole

Everyone finds it's a lot more pleasant to ride a bike with bike shorts than without

Shimano BB-MT501 English Bottom Bracket - English, 68/73mm, Fits Hollowtech II Spindle Dallas Cage Material: Injected Nylon/Glass FiberThe 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 Item Specifications BB Shell Width (mm) 68 BB Shell Width (mm) 73 BB Frame Interface English Bottom Bracket Shell I. D. 1. 37 Defined Color Black Spindle Interface Type Shimano Hollowtech II