Shimano GRX Di2 RD-RX825 Rear Derailleur (Black) (12-Speed) (Shadow Plus) (Electronic)

Shimano GRX Di2 RD-RX825 Rear Derailleur Description: The Shimano GRX Di2 RD-RX825 Rear Derailleur ensures quick and precise 12-speed shifting for mixed-terrain riding with a built-in switch for chain management in off-road and on-road conditions. Easy charging via the integrated port for on-the-bike recharge. Fully customizable with an array of shift mode options and a status indicator light to ensure your next adventure is ready to go. Features: Integrated D-FLY connectivity and charging port Fast and reliable shifting over rough terrain Adjustable chain stabilizer prevents chain slap and smooth shifting when hitting pavement sections Gravel-tuned clutch adds just the right amount of tension for chain management LED status indicator calls out battery life with a quick glance Compatible with 11-34 and 11-36T cassettes Specifications: Speed: 12 Speed Shifter Compatibility: Shimano Di2 Shift Mechanism: Electronic (Wireless/Wired) Max. Tooth: 36T Min. Tooth: 11T Chain Wrap Capacity: 40T Cage Material: Aluminum Chain Retention: Shadow RD+ Color: Black Weight: 310g