Shimano Ultegra Cassette ? CS R8000 (11-Speed, 11-32T)

The Shimano Ultegra R8000 Cassette is technically and precisely engineered for use in road bikes for races and training rides. 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. The cassette has extremely smooth and lag-free shifting performance offers a wide range of gear combinations and is designed to work best with Shimano Ultegra R8000 Groupset.