This is the steel replacement freehub body to be used with both 3.30 and 3.30Ti rear mountain hubs. Perfect way to replace a worn and tired freehub body from a pair of Stan's ZTR wheels. The kit includes the freehub body, pawls and springs . It features a Shimano/SRAM spline pattern for 8, 9, 10 speed, and works with 11-speed Shimano mountain cassettes or the HG-800 11-34 11s model. It doesn't work with standard 11-speed road cassettes.