The perfect choice for your gravel rides, and mixed terrain adventures, delivering quiet, stable and efficient performance.
Precision Shifting & Stability for Gravel & Adventure Riding
The Shimano GRX RD-RX820 12-Speed Rear Derailleur is engineered specifically for gravel, adventure, and all-terrain cycling, delivering smooth, precise shifting and a stable, quiet drivetrain. Designed to handle rough terrain, this derailleur ensures reliable performance on unpredictable surfaces.
Advanced Shadow Plus Technology for Chain Stability
- Low-Profile Shadow Plus Design – Maintains a sleek profile to reduce impact damage.
- Chain Stabilisation Switch – Reduces chain bounce and slap, ensuring a quiet, stable drivetrain on rough gravel roads.
- Fast & Precise Shifting – Optimised for smooth gear transitions, even under load.
Durable & Lightweight Construction
- High-Tolerance Cold-Forged Aluminium – Lightweight yet extremely durable for rugged off-road riding.
- Wide Gear Compatibility – Works with 11-36T cassettes for a versatile range of gearing options.
- Hyperglide+ Chain Compatibility – Enhances shifting efficiency and drivetrain performance.
Designed for Double Chainsets – Optimised for Adventure
Built to complement Shimano’s gravel-specific GRX groupset, the RD-RX820 derailleur ensures quiet, stable, and efficient performance, making it the perfect choice for riders tackling gravel, dirt, and mixed-terrain adventures.