The Shimano GRX RX827 Di2 Wireless rear derailleur paired with a 10-51t cassette (cassette sold separate) gives riders and racers the speed, range, and robustness to pursue any gravel challenge. With built-in automatic impact recovery, an impact-deflecting shape, and solid pulleys, this derailleur stands up to hard impacts and still retains its lightning-quick shifting performance.
Key Features
- Fully wireless shifting built for rough gravel terrain
- A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity
- Automatic Impact Recovery function instantly returns the derailleur to its original position after impact
- Features Shimano Shadow ES: A slimmer, stronger evolution of Shimano's pioneering chain-stabilizing Shadow RD+ concept
- Tucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining easily removable for charging
Specifications
| Largest Cog |
51 |
| Rear Der/Shifter Compatibility |
Shimano Road Di2 |
| Rear Derailleur Mount Type |
Shimano Rear Direct Mount |
| Rear Derailleur Mount Type |
10x1 Standard |
| Drivetrain Speeds |
12 |
| Chain Wrap Capacity (teeth) |
41 |
| Cage Length |
Long |
| Color |
Black |
