- 12T
- Narrow-Wide tooth profiling ensures ultimate chain retention
- Composite material provided by EMS Swiss with 40% glass-fibre mixture
- RollerBoys equipped with low friction ceramic bearing for ultra-smooth glide and exceptional durability
- Lubricated with special ceramic light oil for extra smoothness
Compatible With: SRAM Rival 1, CX1, Force 1, X1, XX1, X01, GX1
Made Of: Grivory EMS