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密集的GAF完整BOXLOGO在远处你会觉得是全黑色的把带
Keeping your stuff out of the elements
Commercial-grade
the component mounts with their specific angles
Seat Post Diameter: 31
SUGINO SG75 STANDARD BB 密集的GAF完整BOXLOGO在远处你会觉得是全黑色的把带Traditional cup & cone bottom bracket BB SG75 Standard, with loose ball retainer bearings, used and trusted by many of the professional riders. The cup & cone style BB are more adjustable (can get a perfect smoothness) and more serviceable, so it can perform its required functions for a long time. Bearing : Steel balls Ball Race : Standard Axle : "SG75 taper" Cup Thread : BC1. 37x24T Shell Width : 68mm As SG75 Series use a proprietary taper called