- Composite material provided by EMS Swiss, with 40% glass-fiber mixture.
- Special teeth pattern for quick shifting performance.
- Complete set of bushings for different shifting systems included.
- Bearing type Standard
- Compatible with Shimano 9, 10 and 11-speed / Mega Range, SRAM X0/X9/X7, Apex, Rival, Force and Red (> 2011) and Campagnolo 11-speed.