Specifications:
Series: GRX RX810
Application: Gravel, Cyclocross, City & Touring
Gearing: 11-speed
Mount: standard (Direct Mount compatible)
Capacity: 31 teeth
Compatibility: Shimano Road 11-speed
Compatibility - Chains: HG-EV 11-speed, HG-X11

Technical Information:
Derailleur Pulleys: 11 tooth
Outer Cage Material: aluminum
Inner Cage Material: aluminum
Other Materials: aluminum, composite (GFRP), steel, stainless steel

Compatibility:
- 1x11-speed GRX ST-RX810 and ST-RX600 shift/brake levers
- 11-speed MTB CS-M8000 and CS-M7000 cassettes with a large sprocket of 40 to 42 t
- 11-speed chains

Features:
- for 1x11-speed drivetrains
- adjustable chain stabilization prevents chain drops
- stabilizer with on/off switch to adapt to the terrain
- tension adapted to gravel
- silent and continuous rear derailleur on uneven terrain
- smooth and reliable shifting on mixed terrain
- painted cage plates
- derailleur pulley bearings
- Four joint bushings, fluorine-coated

Technology:
Shadow RD+
Less distraction, quiet drivetrain. Rear derailleur stabilizer, reduces chain slap. A simple solution for chain drop. Lighter and more efficient than the roller type chain device.

Models:
long:
- Largest Sprocket Teeth (max.): 42 teeth
- Largest Sprocket Teeth (min.): 40 teeth
- Smallest Sprocket Teeth (max.): 11 teeth
- Smallest Sprocket Teeth (min.): 11 teeth
- Chainring Difference (max.): 0 teeth
- Total Capacity: 31 teeth
- Factory Number: I-RDRX812

Contents:
- 1 x Shimano GRX RD-RX812 rear derailleur
- 1 x Shimano OT-RS900 240 mm cable housing (Option)
- 1 x long nose end cap (Option)
Weight: -black / long : 267 g