Shimano GRX RD-RX812 11S – Shadow+ Rear Derailleur

The Shimano GRX RD-RX812 is the rear derailleur specifically designed for gravel and light off-road use, ideal for 11-speed single chainring setups. It guarantees smooth, precise and silent shifting even on the roughest terrain, thanks to SHIMANO SHADOW RD+ technology with adjustable chain stabilizer.

Main features

• Stability and silence on uneven surfaces thanks to the chain stabilizer (Shadow RD+)

• Manual activation/deactivation of the stabilizer based on the type of terrain

• Full compatibility with Shimano Dual Control Road 11V levers

• Dedicated clutch adjustment for gravel use

• Precise and reliable gear changes even with large capacity cassettes

Technical specifications

• Model: RD-RX812

• Series: Shimano GRX 11V

• Mounting type: Direct mount (Shadow+)

• Smallest sprocket: Min. 11T / Max. 11T

• Largest sprocket: Min. 40T / Max. 42T

• Total capacity: 31D

• Drivetrain compatibility: 1x11 speed

• Color: Black GRX series

• Item code: IRDRX812

• EAN: 4550170448882

• UPC: 192790448886

Strengths

✔️ Optimized performance for gravel and bikepacking
✔️ Greater chain control and less noise
✔️ Compact design and protected from impacts and debris
✔️ Perfect integration with mechanical GRX 11V groupsets