Product description
- Excellent gearbox performance
- »New driving profiles for faster and smoother shifts byHYPERGLIDE+
- -BEAM SPIDER
- »Lighter and stiffer structure
- » Reduces cassette inertia with faster acceleration and greater chain stability
- ・MICRO SPLINE
- » 10T lower sprocket made based on the new rear HUB structure
- ・12-speed transmission with wide-range close ratios