Shimano Ultegra CS-R8000 11 Speed

SHIMANO ULTEGRA – 11-Speed – HG-EV – Road Cassette Sprocket

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.