Effortless Resilience. Effortless Precision. SRAM RED XPLR AXS is designed to be the ultimate gravel drivetrain: resilient, precise, light and fast. Attaching to frames with the UDH interface, the Full Mount RED XPLR AXS rear derailleur eliminates variables by centering on the rear axle for a precise fit and superior impact resistance. It’s simpler, stronger, with no need for a hanger. Fast, precise shifting with simple setup. The Full Mount derailleur removes hanger variances, so RED XPLR AXS brings perfect shifting with no adjustment screws. WHAT'S INCLUDED SRAM Red Shifter Levers-Brake Calipers (Left-Front & Right-Rear) SRAM Paceline X Centerlock Rotors, one in each size, 160mm & 140mm SRAM Red XPLR AXS Rear Derailleur, 13-speed 1x AXS Battery 1x AXS Battery Charger 1x SRAM Red Chain 1x SRAM Red XPLR Cassette, 10-46T, 13-speed 1x SRAM Red XPLR AXS Crankset