Experience a better bike ride. SRAM Rival eTap AXS features the technology modern riders demand—intuitive wireless shifting, innovative gearing, integrated power measurement, AXS connectivity, and refined hydraulic disc brakes. It’s low on complexity, but rich with features.On any surface you can imagine, in any drivetrain configuration, the Rival eTap AXS rear derailleur will handle it. Secure chain management and fast, precise shifting make for a smooth and quiet ride, every time.• 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 10-28T, 10-30T, 10-33T, and 10-36T cassettes• SRAM AXS enabled, allowing easy personalization• Spring clutch keeps the drivetrain quiet and secure• X-SYNC pulleys for increased durability and efficiency