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.SPECIFICATIONSModel: CS-R8000Series: ULTEGRA R8000Type: HG-EVGear: 11 speedCompatible..