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.
- 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
- Toggle clutch on/off to match the terrain
- For 1x and 2x drivetrains
- 34t low sprocket max / 11t top sprocket max
Manufacturer Shimano
Manufacturer Part Number IRDRX810
UPC 192790448879
Model Shimano GRX RD-RX810/RX812 11-Speed Rear Derailleurs
Rear Derailleur Style Road
Largest Cog
34
Color
Black
Rear Der/Shifter Compatibility
Shimano Road
Rear Derailleur Mount Type
Shimano Rear Direct Mount
Rear Derailleur Mount Type
10x1 Standard
Drivetrain Speeds
11
Weight
255
Chain Wrap Capacity (teeth)
40
Cage Length
Long