Features of the Shimano Ultegra CS-HG800-11 Cassette High-Performance gear combinations provide superior rider choice With hub body for MTB to Fit a variety of bikes from MTB to road Specifications Compatible chain: HG-EV 11-speed/HG-x11 Generation: Ultegra HG80 Number of speeds: 11 Cassette or freewheel: Cassette Finish: Anodized Weight: 335g Combination name(group name): 11-34t Compatible chain: HG-EV 11-speed/HG-x11 Speeds: 11-speed Type: HG-EV