Shimano GRX Shadow Plus RD-RX812 11-speed Rear Derailleur

With the GRX RD-RX812 rear derailleur by Shimano you can shift reliably off-road

With the Shimano GRX RD-RX812 rear derailleur you can shift smoothly and quietly on rough terrain. An adjustable chain stabilizer and the Shimano Shadow RD+ technology counteract chain slapping and dropping. Use this rear derailleur when riding an 11-40 or 11-42 cassette.

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: aluminium
Inner Cage Material: aluminium
Other Materials: aluminium, 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 stabilisation 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
- 4 joint bushings, fluorine-coated

Technology:

Shadow RD+
Less distraction, quiet drivetrain. Rear derailleur stabilizer, reduces chain slap. Simple solution for chain drop. Lighter and more efficient than 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
- Manufacturer Part Number: I-RDRX812

Contents:

- 1 x Shimano GRX RD-RX812 rear derailleur
- 1 x Shimano OT-RS900 240 mm cable housing
- 1 x long nose end cap