SHIMANO Dura-Ace BB-R9100 Hollowtech II Black Bottom Bracket 24mm Spindle

SHIMANO Dura-Ace BB-R9100 Hollowtech II Black Bottom Bracket 24mm Spindle The Shimano Dura-Ace BB-R9100 Bottom Bracket is system engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output. That's how it achieves supremacy.Bottom bracket with small ball bearings for extra weight savings Advanced seal construction for smoother rotation Spindle Interface: 24mm (Shimano Hollowtech II, FSA MegaExo, Surly OD, FSA MegaExo Light, RaceFace EXI)Bottom Bracket Shell ID: 1.37 and 36Color: BlackWeight: 65.0g Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.