Shimano Derailleur GRX RD-RX812

The SHIMANO GRX derailleur ensures quiet, secure, and precise shifting on mixed terrain with its integrated chain stabilizer. For rides on smooth surfaces, the chain stabilizer can be turned off using the ON/OFF switch on the derailleur. The RD-RX812 derailleur is compatible with MTB cassettes with a maximum of 42 teeth on the largest sprocket.

• Quiet, smooth, and reliable shifting system for varying ground conditions and uneven terrain
• Spring tension adapted for gravel
• Adjustable chain stabilizer prevents the chain from jumping off with ON or OFF to adapt to the terrain
• Rear shifting stages: 11-speed
• Model: RD-RX812 / GRX 11-speed
• Recommended chain: HG-EV and HG-X 11-speed
• Total capacity: 31 teeth
• Max. largest sprocket: 42 teeth
• Min. largest sprocket: 40 teeth
• Max. smallest sprocket: 11 teeth
• Min. smallest sprocket: 11 teeth
• Compatible with current DUAL-CONTROL shift/brake lever for road bikes
• Application area: Gravel, Road, Cyclocross
• Shimano Shadow RD+
• Weight: 267 g