Shimano GRX 812 11-Speed Rear Derailleur

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.

View the Shimano GRX Product LineView all Shimano Rear Derailleurs

Technical Specs

Best Use

Derailleur Type

Cage Length

Max Rear Cog Size

Speeds

Weight

Road Cycling

Rear

Medium / Long Cage

42T

11-speed

267 grams