Shimano GRX RD-RX812
The Shimano GRX RD-RX812 is an 11-speed rear derailleur built for 1x gravel drivetrains, with a Shadow Plus clutch you can toggle on or off to quiet the chain over rough terrain and a capacity for cassettes up to 42T. It suits gravel and adventure builds running a single chainring where chain security and a clean, low-profile fit matter.
- GRX 11 speed rear derailleur for 1X cranks
- Adjustable chain stabilizer prevents chain slapping and drops
- Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain
- Low sprocket: Max. 42T/Min. 40T
- Top sprocket: 11T
Pairs well with
Shimano GRX RD-RX812
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