SRAM, Rival AXS E1, Rear Derailleur, Speed: 12, Black

Description

* 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