Shimano GRX RX822 Rear Derailleur GS
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Shimano GRX RX822 Rear Derailleur GS
Shimano GRX RX822 Rear Derailleur GS Info
The Shimano GRX RX822 Rear Derailleur GS is built for gravel riders who need reliable, precise shifting across the full range of a wide-range cassette — without the mechanical noise that comes with rough terrain. Running a 12-speed drivetrain, it handles cassettes up to 45T, giving you the low gearing to climb technical gravel without compromising cadence on the flats.
The integrated chain stabilizer is where this derailleur earns its keep off-road. It suppresses chain slap and reduces the risk of chain drop on rough surfaces — and when the trail smooths out, you can switch it off. The system is designed to be lighter and more mechanically efficient than roller-type chain retention devices, keeping the overall drivetrain feel clean and direct.
Shimano GRX RX822 Rear Derailleur GS Specs at a Glance
- Speeds: 12-speed
- Max sprocket: 45T
- Cage length: GS (medium cage)
- Chain stabilizer: Switchable on/off
- Finish: Black
