Mavic ITS-4 QRM Auto Freehub Body Kit Description: This Mavic ITS-4 QRM Auto Freehub Body Kit fits newer ITS-4 hubs that feature a 15mm axle and use a 4-pawl drive mechanism, and those hubs are found on select Mavic mountain bike wheels. Features: Genuine Mavic replacement parts Freehub fit for Mavic ITS-4 QRM Auto hubs that have a 15mm axle and a 4-pawl drive mechanism Compatible with SRAM XD 11-speed and 12-speed MTB cassettes; not compatible with SRAM XDR road or gravel bike cassettes Specifications: Material: Aluminum Cassette Compatibility: SRAM XD