- Specific to SRAM's 1x11-speed X-Actuation drivetrain - Zero Loss lever travel actuation for super-precise shifting across wide-range gearing along with up to 4 gears per shift throw - Single click rear model helps eliminate premature chain wear and breakage on E-MTB drivetrains - Compatible with MatchMaker-X clamps - Aluminum construction with Torx hardware and discrete clamp