Shimano | Grx 12 Speed Rear Deraileur Rd-Rx825 Rear Derailleur

Shimano GRX RD-RX825 12-Speed Rear Deraileur The Gravel Game-Changer The long-awaited Shimano GRX 12-speed Di2 series has officially arrived; introducing the newest generation of the world's first gravel-specific groupset. This GRX RX825 Rear Derailleur brings top-level 12-speed Shimano Di2 tech to the world of gravel-specific derailleurs. The RX825 is optimized for use with a 2x12 setup, providing crisp rear shifts while handling the unique demands of a 2x drivetrain over rough terrain. The derailleur also supports full or semi-synchronized shift modes, customizable to any rider's needs-so you'll never be caught in the wrong gear. The gravel-tuned clutch mechanism and Shadow RD+ technology help to reduce chain slap, with an easy-to-use on/off switch. The RX825 is compatible with 11-34 and 11-36t cassettes, and features an integrated wireless unit for accessory and E-Tube connectivity. For riders who demand the widest possible gear range, the most precise shifts under load on rough terrain, and who crave customizability, the new Shimano GRX RD-RX825 12-Speed Rear Derailleur is a game-changer. Features Gravel-tuned clutch tension with an adjustable chain stabilizer to reduce chain slap Optimized for 2x12 drivetrains with optimization for 11-34 or 11-36t cassettes Supports full or semi-synchronized shift modes customizable to the needs of every rider Integrated wireless unit, charging port, and switch for easy accessory connectivity and customization Smaller, more compact design than previous GRX Di2 rear derailleurs Shadow RD+ for a more secure and quieter ride over the roughest gravel roads and doubletrack SPECIFICATIONSTotal Chain Capacity40-tooth Low Sprocket Max36TSpeeds12Drivetrain Compatibility2x12Average Weight N/A | Shimano | Grx 12 Speed Rear Deraileur Rd-Rx825 Rear Derailleur