ST-RX820 GRX Hydraulic Disc Brake Set

Shimano GRX ST-RX820 levers provide precise and responsive mechanical shifting for mixed-terrain riding and racing. The GRX BR-RX820 2-piston disc brake caliper ensures superior control on gravel terrains with improved modulation and quick initial braking. Despite its compact build, the system operates quietly and is easy to maintain.

Key Features:

- Left brake lever, GRX BL-RX820, with a textured hood for enhanced grip during bumpy descents

- Anti-slip coating on GRX brake levers ensures reliable stopping power in wet or muddy conditions

- Reach Adjust mechanism allows for easy customization to fit any hand size or riding style

- SERVO WAVE technology facilitates rapid pad-to-rotor contact for increased braking power and control

- Gravel-specific lever and bracket ergonomics optimized for flared bars

- 10% wider pad clearance in the 2-piston caliper reduces brake noise

- One-way maintenance-friendly bleeding process prevents air bubbles in the hydraulic system

- Includes finned L05A pads with a resin compound for improved heat dissipation

- Convenient tool access with J-Kit for straightforward setup, maintenance, and wheel replacement

Additional Specifications:

- Rotor not included (sold separately)

- Pad Compound: Resin

- Brake Caliper Mount: Flat Mount

- Hydraulic Hose Length: 1000mm front; 1700mm rear

- Shifter/Derailleur Compatibility: Shimano

- Hydraulic Fluid Type: Mineral Oil

- Front Der/Shifter Compatibility: Shimano Road

- Brake Lever Actuation: Hydraulic

- Drivetrain Speeds: 12

- Adjustable Reach: Yes

- Weight: 222g (front brake only lever); 263g (front dropper lever); 283g (front 2x); 289g (rear 12sp lever)

- Color: Black/Grey

- J-Kit Technology: Pre-bled components for easy installation in frames with internal routing. Disconnected lever comes pre-bled with connecting bolt and built-in olive pre-installed. Brake caliper is pre-bled with brake hose connected and capped.