No mixed messaging or compromises here. The PG-720 cassette was built with only one purpose in mind - exploiting gravity to its fullest lap after lap. This downhill-optimized cassette gives you gear steps that give each shift more purpose. It's a full-on, dedicated SRAM 1x cassette for gravity that lets you keep some money for a lift ticket.The PG-720 downhill-optimized 7-speed cassette is an integral part of the SRAM 1x DH drivetrain systemOne of the most affordable full-featured, dedicated 1x DH cassette in the industryCompatible with SRAM 11-speed PowerchainsFully compatible with the SRAM X01 DH drivetrainSplined driver body compatible (Remove the spacer to fit slim 7-speed DH specific HG hubsIntegrated guard protects spokes from derailleur interferenceItem SpecificationsCassette Body TypeShimano HGCogs11-13-15-17-19-22-25ColorBlackDefined ColorBlackDrivetrain Speeds7Range11-25 SRAM PG-720 DH 7-Speed Cassette Cassettes UPC: 710845919374