The Shimano GRX RX822 SGS is a 12-speed mechanical rear derailleur designed primarily for road bikes. gravel, although it can also be mounted on MTB bikes with 12-speed systems. It offers reliable and precise performance, ideal for mixed terrain and demanding conditions, thanks to its robustness and specific features.
Main features:
- Cassette Compatibility: Compatible with Shimano 12-speed cassettes, from 10 to 51 teeth.
- Total capacity: It allows a difference of up to 41 teeth between the largest chainring and the smallest sprocket, ideal for configurations with a wide range of gears.
- SHIMANO SHADOW RD+ Technology: It features an adjustable chain stabilizer, which helps reduce noise and prevent the chain from falling off on rough terrain. The stabilizer has an ON/OFF function to adapt to terrain conditions.
- Pulleys: Equipped with 13-tooth pulleys with fluorine bearings, which improves shifting smoothness and prolongs durability.
- Weight: Approximately 288 grams, making it a lightweight and efficient option.
- Materials: Manufactured from lightweight alloy for the cage body, with optimized adjustment screws and bearings that minimize maintenance.
- Design and compatibility: Ideal for gravel and MTB bikes, the derailleur is fully compatible with Shimano GRX series mechanical shifters. It's especially well-suited for those looking for a robust option on mixed terrain.
- SGS Cage: The SGS cage is designed to support higher range cassettes, such as 10-51t.
- Packaging: OEM (unboxed)











