SRAM RED eTap AXS Electronic Road Groupset - 2x, 12-Speed, Cable Brake/Shift Levers, eTap AXS Front and Rear Derailleurs, B1The SRAM RED eTap AXS Electronic system is an intuitive, high performance wireless groupset. At the core of this drivetrain is AXS the electronic integration platform that allows you to easily personalize the groupset right from your phone and enable your choices while riding. Orbit chain management provides a reassuringly quiet, secure and smooth ride, whatever the terrain. Product Specifics Brake Type: Road Caliper Short Reach 39 49mm Brake Lever