With a wider than normal 11-38t gear range, it's clear that the microSHIFT Sword cassette is made for climbing. It's also made to be as compatible and durable as possible. It fits on a standard freehub body, so there's no need to upgrade existing wheels to a new standard. And the satin nickel finish is designed to look as good after a month of riding as it did on the day you bought it. Aluminum spider and large cog provides weight savings. Satin nickel finish improves cosmetic durability. Compatible with standard 10-speed chain. Compatible with standard freehub body. Item Specifications: Range: 11-38, Cogs: 11-13-15-17-19-21-24-28-32-38, Cassette Body Type: HG, Drivetrain Speeds: 10, Color: Silver, Weight: 336, Defined Color: Silver,