Description
Shimano SM-BB71 Road Press Fit
Bottom Bracket with Inner Cover – Black, 70-118 mm
The outboard bearings offer better weight distribution and more stability that provides a more efficient power transfer. The diameter of the bearing axle (24 mm) was an important factor in development because the axle has a positive effect on stiffness, stability, weight, and rotating efficiency.
Recommended for Ultegra FC-6700, FC-6700 G, FC-6750, FC-6750 G, FC-6703, FC-6703 G / 105 FC-5700, FC-5750, FC-5703 / Tiagra FC-4600, FC-4650, FC-4603 / Sora FC-3550, FC-3503 / FC-CX50 / FC-R603, FC-R563, FC-R460, FC-R350
Shimano article number I-SMBB7141B
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