Shimano GRX RX717 Rear Derailleur 12V 10-51T - Black

This rear derailleur from Shimano is the GRX RD-RX717-SGS, designed for fully wireless Di2 shifting on rugged gravel terrain. Its wide-link architecture, skid-plate shaping, and robust pulley construction are engineered to withstand impacts and keep performing, while Automatic Impact Recovery ensures the derailleur snaps back into position after a hit, maintaining precise shifting on rocky trails. The battery is securely housed within the body to prevent rattling or ejection on bumpy roads, yet remains easy to remove for charging.

- Fully wireless Di2 rear shifting optimized for demanding gravel riding
- Automatic Impact Recovery aids in returning the derailleur after an impact
- SHIMANO SHADOW ES design for a slimmer, stronger, and stabilized profile
- Wide link structure and skid plate shaping enhance impact durability
- Durable aluminum plate construction for extended service life
- Solid pulley design built to endure rough terrain use
- Protected internal battery placement for secure retention off-road
- Designed to pair with a 10-51T 12-speed cassette for a wide range of gearing

Specifications
Brand: Shimano
Model: RD-RX717-SGS
Series: GRX
Type: Di2 rear derailleur
Intended Use: Gravel
Speed Compatibility: 12
Mount Type: Direct attachment SHADOW ES
Cage Type: SGS
Small Sprocket size: 10 T
Big Sprocket Size: 51 T
Color: Black