RD-RX815
The Shimano GRX RD-RX815 Di2 rear derailleur delivers professional-grade electronic shifting for gravel and mixed-terrain riding. It features an integrated chain stabilizer with an ON/OFF switch, allowing riders to eliminate chain slap on rough trails or reduce friction on smooth pavement. This Di2 version ensures digital precision and effortless synchronization with Shimano's electronic road levers.
Optimized for versatility, this derailleur is compatible with road cassettes featuring a max low cog of 34T. It offers a total capacity of 38T and handles a maximum front chainring difference of 17T, making it ideal for 2x drivetrains. The gravel-tuned architecture provides security and crisp gear changes in the most demanding off-road conditions.
Quick Facts
| Feature | Specification |
|---|---|
| Drivetrain Type | Di2 Electronic (11-Speed) |
| Clutch System | Adjustable Shadow RD+ (ON/OFF Switch) |
| Cassette Range | 11-30T to 11-34T |
| Total Capacity | 38T |
| Max Front Difference | 17T |
| Compatibility | Shimano Di2 Road Dual Control Levers |
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