Replacement freehub bodies for Mavic FTS-L(Force Transfer System-Light) hubs. Easy to swap and replace. Use these to replace worn freehubs or when switching drivetrains from Shimano to Campagnolo or vice-versa. Top quality bearings and steel construction are durable and reliable. 1.75mm M10 spacer for Shimano/SRAM version (needed for 9 and 10 cassettes - not required for 11-speed) sold separately.