Shimano GRX 812 11-Speed Rear Derailleur

Offering silent, uninterrupted rear shifting on rough terrain, the gravel bike–specific Shimano GRX 812 11-speed rear derailleur is compatible with MTB cassettes with a 40- or 42-tooth low sprocket.

Features

• With a 31-tooth total capacity, the GRX 812 11-speed rear derailleur handles an 11-tooth top sprocket and 40- or 42-tooth low sprocket—ideal for wide-range 1x systems
• 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.

Technical Specs

Best Use	Road Cycling
Derailleur Type	Rear
Cage Length	Medium / Long Cage
Max Rear Cog Size	42T
Speeds	11-speed
Weight	267 grams