Shimano BB-MT501 English Bottom Bracket - English 68/73mm Fits Hollowtech II Spindle Black Misc GRS-certified recycled polyester and a

GRS-certified recycled polyester and a PFC-free DWR coating

Nests a small fuel canister

Outer Overlay Material: 55% PU 45% Nylon

The iconic product line now upgraded features a top entrance bulk storage compartment for full access without compromise to tools and gear

SIS Index shifting

Shimano BB-MT501 English Bottom Bracket - English 68/73mm Fits Hollowtech II Spindle Black Misc GRS-certified recycled polyester and aReplacing 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 Black