SRAM, Rival eTap AXS D1, Rear Derailleur, Speed: 12, Black

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