Rear Derailleur Shimano GRX RD-RX817 Di2 Top Normal 11-speed
Shimano GRX Di2 11-speed rear derailleur compatible with MTB cassettes up to 42T, delivering precise and quiet electronic shifting for gravel riding.
Overview
Rear Derailleur Shimano GRX RD-RX817 Di2 Top Normal 11-speed
The Shimano GRX RD-RX817 Di2 is an 11-speed electronic gravel rear derailleur designed for maximum control on mixed terrain. Its integrated chain stabilizer mechanism reduces chain slap and vibration, ensuring quieter and more secure shifting on technical trails.
The adjustable clutch with ON/OFF switch allows you to fine-tune chain tension depending on terrain – lower resistance on smooth roads and maximum stability on gravel and rough surfaces. The gravel-tuned clutch tension maintains reliable chain control in demanding conditions.
The Di2 version delivers Shimano electronic and synchronized shifting with digital precision. Compatible with MTB cassettes up to 42T, the RD-RX817 works seamlessly with road DUAL CONTROL LEVER shifters. Firmware updates are supported via E-TUBE PROJECT.
- Use: Gravel, mixed terrain
- Series: Shimano GRX Di2
- Model: RD-RX817
- Speeds: 11
- Technology: SHIMANO SHADOW RD+
- Compatible cassette: 40–42T
- Total capacity: 31T
- E-TUBE port: 1
- Firmware update: Yes
- Weight: approx. 318 g
