Shimano BB-MT501 English Bottom Bracket - English 68/73mm Fits Hollowtech II Spindle BLK Reach-50 SmartEvo AS compound an advanced

SmartEvo AS compound an advanced rubber formulation that blends performances such as grip smoothness and durability

extra wide beam Side illumination ports Daytime visible flashes Secure handlebar mount with low profile thumbscrew stays out of the way of other handlebar accessories Designed

}Topeak TetraRack M2 HD Seatstay Mount

Frame Mount Width 32

Superflow cutout for comfort and pressure relief

Shimano BB-MT501 English Bottom Bracket - English 68/73mm Fits Hollowtech II Spindle BLK Reach-50 SmartEvo AS compound an advancedShimano 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 SPECS Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 68 BB Shell Width (mm) 73 Spindle Interface Type Shimano Hollowtech II Defined Color Black