System engineered for use with the SHIMANO ULTEGRA R8000 groupset, the R8000 cassette is available in a wide range of road and mixed surface ratios. It is compatible with HG-EV and HG-X11 chains.
- Keeps roller brake components working to maximum efficiency for better braking
- Prevents the damaging rust and corrosion caused by the ingress of water and road muck into valuable parts