Shimano GRX ST-RX820 / BR-RX820 2 x 12 Speed Hydraulic Disc Brake SetShimano GRX ST RX820 BR RX820 Hydraulic Shfiter Brake Set 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
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Shimano GRX ST-RX820 / BR-RX820 Hydraulic Shfiter/Brake Set
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
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Shimano GRX ST-RX820 / BR-RX820 2 x 12 Speed Hydraulic Disc Brake Set