The GX 2x10 derailleur leverages SRAM's legendary shifting performance, offering incredible speed and precision. The Exact Actuation technology ensures a significantly smoother shifting experience. The Roller Bearing Clutch technology provides maximum drivetrain stability, even on brutal and highly demanding terrain. Thanks to the Cage Lock technology, removing and installing the rear wheel is easier than ever. Exact Actuation delivers precise and reliable performance in the 10-speed range. Available cage lengths: short, medium, and long. Also available without Roller Bearing Clutch.