The Shimano GRX RX820 2 x 12 hydraulic shifter set is purpose built for gravel riding, combining precise electronic level shifting accuracy with powerful and consistent hydraulic braking. Designed to excel on mixed surfaces, the RX820 levers deliver confident control whether riding rough tracks, fast gravel roads or long endurance routes. The lever shape and braking feel are tuned specifically for gravel use, offering stability and reassurance when traction is limited and conditions are unpredictable.

This system integrates Shimano hydraulic disc brake technology with smooth 12 speed shifting, ensuring reliable performance under load and in poor weather. The hydraulic brake system self adjusts for pad wear, maintaining consistent lever feel and braking performance throughout the life of the pads. With refined ergonomics and intuitive shifting action, the GRX RX820 shifter set is built for riders who demand control, durability and confidence on every ride.

 

• Shimano GRX; with its gravel specific ergonomics; optimized gearing options; rugged reliability; and quiet and stable drivetrain; sets itself apart from the rest of the component world
• GRX hydraulic disc brake 12-speed STI's give you control; modulation and power with minimal effort in all riding conditions
• Higher brake lever axis and curved brake lever;improves grip and confidence on choppy surfaces and descents
• Raised hood head prevents hand misalignment and slippage
• Recessed finger notch prevents upward slipping
• Anti-slip texture and brake lever coating gives higher braking efficiency and reduces fatigue on long rides
• Greater control on gravel and mixed surfaces
• Hydraulic disc braking for consistent power and modulation
• Gravel specific lever ergonomics for improved grip and comfort
• Wider reach adjust range to suit different hand sizes and riding positions
• Smooth and reliable 12 speed rear shifting under load
• Light and precise front shifting when paired with GRX RX820 front derailleur
• Includes resin brake pads where supplied by manufacturer
• Supplied OE
• Please note: these do not include spare barbs olives or outer cables
• Speed: 2 x 12
• Fluid: Shimano mineral oil
• Hose length front: 1000mm
• Hose length rear: 1700mm