Saris 11sp Cassette on freehub The Saris 11sp Cassette on freehub is a freehub and cassette combo featuring a pre-installed 11-speed cassette. This cassette is compatible with Shimano, SRAM and Campagnolo 11-speed systems and is compatible with the Saris H3 Direct Drive Smart Trainer, as well as the Cycle Ops Hammer and H2. The cassette is 11-speeds and has a 11-25 tooth range. Features Compatible with the Saris H3 Direct Drive Smart Trainer, as well as the Cycle Ops Hammer and H2. Compatible with Shimano, SRAM and Campagnolo 11-speed systems. 11-25 tooth, 11-speed Specifications Cassette Body Type Shimano, SRAM and Campagnolo 11-speed systems Cassette Cogs11-25t Drivetrain Speeds11Cassette Material Steel Weight- | Saris | 11Sp Cassette On Freehub 11Sp