Product Review
Computer designed HyperGlide shift ramps and tooth profiling for faster, more precise shifts. Features: Must use 9-speed chain Reduced cog spacing: 9-speed is same overall width as 8-speed
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Computer designed HyperGlide shift ramps and tooth profiling for faster, more precise shifts. Features: Must use 9-speed chain Reduced cog spacing: 9-speed is same overall width as 8-speed
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