The Shimano GRX 11-speed rear derailleur has an integrated chain stabilizer mechanism, that provides a quieter experience, shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON/OFF switch for the chain tensioner. The Shimano Shadow RD+ adjustable chain stabilizer provides silent and uninterrupted rear shifting on rough terrain.
- For 1x drivetrains
- 42t low sprocket max / 11t top sprocket max
- Adjustable Shimano RD+ chain stablizer prevents chain slapping and drops
- Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
- Compatible with Shimano road Dual Control Levers
- Compatible with Shimano LinkGlide and HG 11-speed chains
| Item Specifications |
| Cage Length |
Long |
| Chain Wrap Capacity (teeth) |
31 |
| Color |
Black |
| Drivetrain Speeds |
11 |
| Largest Cog |
42 |
| Rear Der/Shifter Compatibility |
Shimano Road |
| Rear Derailleur Mount Type |
10×1 Standard |
| Rear Derailleur Mount Type |
Shimano Rear Direct Mount |
| Weight |
267 |
Shimano GRX RD-RX810/RX812 11-Speed Rear Derailleurs Rear Derailleur UPC: 192790448886
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