Shimano GRX Di2 RD-RX825 rear derailleur 12 speed

Shimano GRX Di2 RD-RX825 rear derailleur

Like Shimano's electronic road 12-speed derailleurs, the GRX 12-speed electronic rear derailleur has an integrated wireless connectivity unit and charging port, which ensure fast and reliable shifting and easy charging. The integrated Shadow RD+ technology, already proven in the MTB sector, prevents chain slap and ensures precise shifting even on uneven terrain. Thanks to the integrated ON/OFF lever, the reduction of the chain tension (lever in the OFF position) makes wheel removal for transport, service, etc. much easier. The RD-RX825 rear derailleur is compatible with 11-34T and 11-36T 12-speed cassettes and supports fully or semi-synchronized shifting modes, which improves individual adaptation to the rider. The derailleur cage handles a total capacity of up to 40 teeth.

Embark on epic adventures

Gravel is about simplicity, inclusivity and curiosity. From beginners to seasoned veterans, everyone swears by Shimano GRX, the industry's first gravel-specific groupset, for its smooth shifting, reliable braking and outstanding gravel comfort.

The new RX820 series offers premium performance with incredible value for money, sophisticated ergonomics and gravel-tuned gear ratios for all types of off-road adventures. Its three gear ratios offer precise and reliable mechanical shifting with different gradations that cover the full spectrum of individual preferences and areas of use. From fast sprints to rough gravel roads, raise your standards to master the challenges ahead. Get more control, power and Bluetooth than ever before.

Highlights

• Compact design with integrated wireless unit, charging port and switch
• Quiet and safe rear wheel shifting in rough terrain
• The adjustable chain stabilizer prevents the chain from hitting or falling off
• SHIMANO SHADOW RD+
• Spring tension adapted to gravel
• Total capacity: 40 teeth
• Largest pinion max.: 36 teeth

scope of delivery

• 1 x Shimano GRX Di2 RD-RX825 rear derailleur 12-speed (see item description for details)