SRAM Power Glide II PG-850 8-Speed Cassettes fit Shimano-compatible freehub bodies.Shimano-compatibleItem SpecificationsColorChromeWeight220gIntended UseRoadCassette SpacingShimano/SRAM 8Cassette Body TypeShimano 8Cassette Cogs12,13,15,17,19,21,23,26Number of Speeds8Chain Compatibility3/32"Range12-26