SRAM RVL ET-AXS RDER MAX.36

Wireless electronic eTap shift logic for intuitive shifting, easy setup and reliability Compatible with both 1x and 2x drivetrains 36t cog max derailleur works with 10-28, 10-30, 10-33, and 10-36 cassettes SRAM AXS enabled, allowing easy personalization Chain management keeps the drivetrain quiet and secure X-SYNC pulleys for increased durability and efficiency Battery and charger sold seperately SRAM Model ID: RD-RIV-E-D1