Shimano GRX 810 11-Speed Rear Derailleur

• With a 40-tooth total capacity, the GRX 810 11-speed rear derailleur handles an 11-tooth top sprocket and 30- or 34-tooth low sprocket; maximum front difference of 17 teeth
• 11-speed SHADOW RD+ system features a clutch and chain stabilizer that can be switched on or off to match terrain
• Switch gravel-tuned clutch on to increase chain tension and reduce unwanted derailleur cage movement on rough surfaces (for easier rear wheel removal, switch clutch off)
• Switch adjustable chain stabilizer on to reduce chain slap, improve chain retention and make riding over uneven surfaces quieter
• Compatible with current road dual control (brake/shift) levers (not included)
• Designed for use with Shimano HG-EV 11-speed or HG-X11 chains (not included)

Imported.