Shimano RD-RX825 GRX Di2 12-Speed Rear Derailleur

The RX825 rear derailleur features Shimano’s pioneering SHADOW RD+ technology. With its convenient on/off switch, SHADOW RD+ makes removing the rear wheel easy when turned off. When on, the drivetrain is under additional tension that makes for a quieter ride and more precise shifting.

Like on Shimano’s road 12-speed Di2 systems, the rear derailleur is also the communication hub of the drivetrain, communicating wirelessly with the shift levers, compatible cycle computers, and E-TUBE PROJECT Cyclist via a smartphone. It also houses the system’s charge port and the multi-function button which allows riders to easily check battery level, pair via Bluetooth, and enter adjustment mode for both derailleurs.

FEATURES

• SHIMANO SHADOW RD+ Chain Stabilization
• Integrated D-FLY connectivity and charging
• 12-speed
• Compatible with 11-34T and 11-36T cassettes
  
• 310 grams

SPECIFICATIONS
Total Capacity: 40T
Max Front Difference: 17T
Colour: Series Colour
Average Weight: 310g
Mount: Direct attachment (conventional)/Direct mount compatible
Number Of Pulley Teeth: 11/13T
Max Low Sprocket: 36T
Min Low Sprocket: 34T 
Rear Speeds: 12
Top Normal Spring Type: Shimano Shadow RD+

SKUs
Product Code:IRDRX825A
Part No: RD-RX825