- Chain management technology keeps the drivetrain quiet and secure
- AXS enabled for easy setup, personalization, and reliability
- Compatible with both 1x and 2x drivetrains
- Compatible with cassettes from 10-28T to 10-36T
- Larger X-SYNC lower pulley for increased efficiency
- SRAM Model ID• RD-RIV-E-E1
- Rival AXS E1
- Rear Derailleur
- Speed: 12
- Black
