Shimano BB-MT501 English Bottom Bracket - English 68/73mm Fits Hollowtech II Spindle Black. The Shimano BB-MT501 bottom bracket for Hollowtech II provides better sealing and rotation to delivery high driving efficiency. TECH SPECSBottom Bracket Shell I.D.
Shimano BB-MT501 English Bottom Bracket – English 68/73mm Fits Hollowtech II Spindle Black. The Shimano BB-MT501 bottom bracket for Hollowtech II provides better sealing and rotation to delivery high driving efficiency.
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