SunRace MX8 11-Speed 11-42T Cassette Black chromeetallic silver finish Cassette Body Type: Shimano Dynasys 11 Speed Mountain Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed Cassette Cogs: 11-13-15-17-19-21-24-28-32-36-42 Range: 11-42