SRAM Rival AXS XPLR E1 13sp Rear DerailleurEngineered for precise, wireless 13 speed shifting across an expanded range, delivering exceptional chain management and intuitive control for dynamic gravel and mixed terrain. The SRAM Rival AXS XPLR E1 Rear Derailleur stands as the heart of SRAM's latest 1x gravel drivetrain, meticulously designed for the demands of diverse off road exploration and adventure riding. It ensures lightning fast, highly accurate electronic shifts across an even wider 13