Shimano  GRX 810 11-Speed Rear Derailleur

$140.00
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Offering silent, stable rear shifting on rough terrain, the gravel bike–specific Shimano GRX 810 11-speed rear derailleur is compatible with 1x and 2x drivetrains and 11- to 34-tooth cassettes.

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Features

  • 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.

View the Shimano GRX Product LineView all Shimano Rear Derailleurs

Technical Specs

Best Use

Road Cycling

Derailleur Type

Rear

Cage Length

Short Cage

Max Rear Cog Size

34T

Speeds

11-speed

Weight

255 grams

Reviews
4 reviews with an average rating of 5.0 out of 5 stars

Ratings Snapshot

Product Rating

3 out of 3 (100%) reviewers recommend this product

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Duart
PNW
Rated 5.0 out of 5 stars

Works great with a wolftooth goatlink

1 year ago

Used this for a do-it-all touring/commuting/gravelling/bikepacking build for my partner. GRX 2x crankset (46/30) and a big ol' 11-46 cassette with a wolftooth goat link for a huge gear range. Once dialed in properly, can easily go through all the gears in both chainrings with no skips or rubbing. Immediately after finishing the build we went on a cross-Washington State six-day bikepacking trip over bumpy doubletrack and the clutch was, well, clutch! (Meanwhile my Tiagra was dropping my chain every day). So far, great mech!

Age:25–34
Yes , I recommend this product
Helpful?
Attaboy
Rated 5.0 out of 5 stars

Nice GRX Upgrade

4 years ago

Upgraded my Shimano 105 derailleur to GRX with 50/34 chain ring. Change was seamless and worked with existing 11-34 cassette. Give me the ability to use clutch on gravel.

Age:45–54
Yes , I recommend this product
Helpful?
Anonymous
California
Rated 5.0 out of 5 stars

New GRX works great

2 years ago

I wanted to be able to use an 11-40 cassette, and my ultegra derailleur looked up to the job but I got this GRX one just to be sure. It installed and worked flawlessly. I just finished a 750 mile ride over 10 days and had zero problems.

Age:65–74
Yes , I recommend this product
Helpful?
Larry C
Rated 5.0 out of 5 stars
3 years ago
Age:55–64
Helpful?

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