The Shimano GRX 11-speed rear derailleur provides silent and uninterrupted rear shifting on rough terrain. An adjustable Shimano Shadow RD+ clutch prevents chain slapping and drops.Features-Compatible with Shimano road Dual Control Levers-Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting-For 1x drivetrainsItem Specifications-Rear Derailleur Mount Type:Shimano Rear Direct Mount,10x1 Standard-Drivetrain Speeds:11-Cage Length:Long-Chain Wrap Capacity (teeth):31teeth-Largest Cog:42-Color:Black-Rear Der/Shifter Compatibility:Shimano Road
J**Y
Great tech, but GRX components could use more detailed descriptions by Shimano.
Solid gravel-specific derailleur. Previously was running an Ultegra RX mounted on a Wolf Tooth Roadlink DM on a SRAM 10-42 1x setup. I bought the GRX to use in conjunction with an extended cage by Garbaruk in order to boost my gear range with Garbaruk’s 10-50 cassette for 500% range on 1x. The mullet setup works great for bikepacking all terrain on a gravel bike in northern Michigan and I plan to take the GRX mullet rig on a self-supported trip bikepacking from Detroit to Duluth via Isle Royal next spring.My only knock against the GRX would be that Shimano doesn’t make it very clear which GRX derailleur is for which use (1x,2x etc.). I did have to order this 812 model after mistakenly getting the 810 which is not recommended for 1x setups. I found this information after extensive digging on forums rather than in a readily available spot on this site or Shimano’s. So really just a gripe with descriptions of the components rather than the tech itself.
S**N
Super fast service will be using again
Came in super fast and was brand new in the original box as well.
T**R
Works great
Amazing gravel , was able to tweak the B screw and get a 11-46 cassette to work
N**S
The seller’s trust.
The Shimano GRX is perfect for gravel bikes. The derailleur arrived perfect.
T**Y
Wonderful for 1x11
My do-it-all bicycle now has one of these and an 11-40t cassette. I love it.
Trustpilot
1 day ago
2 days ago