SRAM XX1 was built with a dedicated 1x drivetrain philosophy, making it simpler, lighter and more durable than any other. Driven by a cutting-edge, single-ring carbon crank and seamless component integration, the SRAM 1x drivetrain delivers flawless chain management and faster more precise shifting. Each component is designed synergistically with the others and represents a culmination of great mountain bike technology and design.
The rear derailleur roller bearing clutch reduces bounce and chain slap and the all-new Cage Lock technology makes the wheel removal and installation easier than ever before. Paired with the XX1 shifter, the XX1 rear derailleur forms the backbone of X-Actuation technology for unbelievably smooth shifting action.