Shimano Grx Rd-Rx825 12-Speed Di2 Rear Derailleur Black, Rear, 12-Speed

For fast, reliable shifting during our mixed-terrain riding adventures, Shimano brings us the new GRX RD-RX825 12-Speed Di2 Rear Derailleur, complete with a built-in wireless connectivity unit and charging port for easy operation and recharging. SHIMANO SHADOW RD+ chain stabilization helps prevent chain slap to allow us to continue to shift accurately as we ride over rough terrain, while the switch stabilizer features an ON/OFF switch to match the terrain and ease wheel removal. Compatible with 11-34t and 11-36t 12-speed cassettes, this wireless rear derailleur is ready to be added to our dream gravel setup.

• Enhanced 12-speed performance with GRX RX825 Di2 Rear Derailleur featuring wireless connectivity for seamless shifting on mixed terrain.
• Constructed with durable lightweight aluminum and magnesium materials to ensure reliability, corrosion resistance, and weight savings during challenging gravel or mountain rides.
• Advanced Shadow RD+ technology minimizes chain slap and noise, providing a quieter, more stable drivetrain that enhances rider confidence on rough or uneven surfaces.
• Integrated clutch and gravel-tuned tension system offer customizable performance, switching easily between ON/OFF modes to optimize chain stability whether on gravel roads or smooth pavement.
• Wireless connectivity, easy wheel removal via built-in ON/OFF switch, and LED status indicator make this derailleur a user-friendly, tech-forward choice for serious gravel and adventure cyclists.