SHIMANO HG50 7-Speed 13-28 Cassette Cassette Body Type: Shimano 7Cassette Cogs: 13,15,17,19,21,24,28Cassette Color: SilverCassette/Cog Color: SilverCassette/Cog Range: 13-28tChain Compatibility: 3/32"Drivetrain Spacing: Shimano/SRAM 7Speeds: 7spWeight: 416g