GRX 1x12 mechanical rear mech
Shimano GRX RD-RX822 1x12 Rear Derailleur
The mechanical 1x12 GRX rear mech, in a medium GS cage for 10-45T cassettes or a long SGS cage for 10-51T. It's a simple way to get huge gear range and a quiet, stable chain on single-ring gravel bikes.
Highlights
Why we rate it
Pick your range
GS cage for 10-45T cassettes, or SGS long cage for the full 10-51T spread.
Switchable stabiliser
Shadow RD+ keeps the chain under control off-road and can be turned off for wheel removal.
Swappable cage
The GS and SGS cages are interchangeable, so you can change cassette range later.
Works with MTB cassettes
Built for Shimano's 12-speed Microspline cassettes on a single chainring.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model code
- RD-RX822-GS, RD-RX822-SGS
- Speeds
- 12
- Actuation
- Mechanical (cable)
- Drivetrain
- 1x
- Cassette (GS)
- Up to 10-45T
- Cassette (SGS)
- 10-51T
- Total capacity (SGS)
- 41T
- Top sprocket
- 10T
- Clutch
- Shimano Shadow RD+ with on-off switch
- Weight (SGS)
- 288g (claimed)
- Chain
- Shimano HG+ 12-speed
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, setup or advice, call 0203 148 6764 or email hello@thecyclecollective.cc.