NEW SRAM Rival eTap AXS Rear Derailleur – 12-Speed, Medium Cage, Black, D1

On any surface you can imagine, in any drivetrain configuration, the SRAM Rival eTap AXS Rear Derailleur can 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 10-28, 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