SRAM's PG-730 7-Speed Cassette is the perfect replacement for your worn-out gears. It features a rugged steel construction for awesome durability and SRAM's PowerGlide technology for smooth, precise shifts throughout its 12-32 tooth range. Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed Drivetrain Speeds: 7 Defined Color: Silver Cassette Cogs: 12-14-16-18-21-26-32 Weight: 302 Range: 12-32