Shimano RD-RX827 GRX Di2 12-Speed Shadow ES 51T SGS Rear Derailleur

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Shimano RD-RX827 GRX Di2 12-Speed Shadow ES 51T SGS Rear Derailleur

Purpose-built for the rigours of gravel riding, this rear derailleur delivers precise, stable shifting when you need it most. The Shimano RD-RX827 GRX Di2 12-Speed Shadow ES 51T SGS Rear Derailleur combines electronic speed and reliability with the robust construction required to handle loose surfaces, mud, and steep gradients. Its low-profile Shadow design keeps the derailleur tucked out of harm's way, while the long-cage SGS construction accommodates a wide 51-tooth cassette for the gearing range essential on mixed-terrain adventures.

- Electronic Di2 shifting provides instantaneous, consistent gear changes under load, even in challenging conditions

- Shadow ES (Enhanced Stability) low-profile design reduces snagging and shields the derailleur from trail debris

- SGS long cage supports cassettes up to 51T, enabling low climbing gears and a wide spread of ratios

- Compatible with Shimano 12-speed GRX Di2 groupsets for seamless integration

- Ceramic pulley bushings and sealed bearings enhance durability and reduce friction

- Rugged construction with corrosion-resistant finishes for long-lasting performance in wet or dusty environments

- Optimised chain tension control maintains reliability across rough, bumpy terrain

Whether you are tackling a long-distance gravel race or an off-road bikepacking expedition, this derailleur keeps you shifting with confidence mile after mile.

GTIN: 4550170290603