Shimano GRX RD-RX820 12-Speed Rear Derailleur | Shadow Plus, Wide Gear Range Mount Location_ second-skin feel that stays in

second-skin feel that stays in place throughout your ride

and comfort to conquer any terrain

including flood and spotlight settings

and quick-drying polyester fabric

Thoughtfully engineered with lightweight structuring

Shimano GRX RD-RX820 12-Speed Rear Derailleur | Shadow Plus, Wide Gear Range Mount Location_ second-skin feel that stays inShop smarter, ride farther the Shimano GRX RD RX820 Rear Derailleur is the ultimate 12 speed component designed for gravel, adventure, and all road cycling. Engineered with precision materials and advanced technology, this rear derailleur ensures smooth, reliable shifting across a variety of terrains. Materials & Construction Built with lightweight, durable aluminum and high strength composites, the RD RX820 delivers excellent rigidity and corrosion