The Shimano GRX RX812 Rear Derailleur stands out for its reliability thanks to all the Shimano technology incorporated into it. Buy it now at Escapa.
Features
- Adjustable chain stabilizer that prevents chain bumps and drops: Shimano SHADOW RD
- Smooth and reliable shifting across mixed terrain - Compatible with modern road bikes. DUAL CONTROL LEVER
- The RX812 model is compatible with 1x drivetrains (mountain bike chainrings up to 42 teeth).
