Shimano GRX BL-RX825 Brake Lever & BR-RX820 Caliper, Left Rear
442499

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Shimano GRX BL-RX825 Brake Lever & BR-RX820 Caliper, Left Rear
442499

£299.99
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For orders under £20, £2.99 will be discounted at basket.
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  • Gravel-optimised ergonomics for comfort and control
  • Lightweight 1x12 hydraulic brake-only design
  • Quiet, powerful braking with easy maintenance

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Shimano GRX BL-RX825 Brake Lever & BR-RX820 Caliper, Left Rear
Shimano GRX BL-RX825 Brake Lever & BR-RX820 Caliper, Left Rear
£299.99

Shimano GRX BL-RX825 Brake Lever & BR-RX820 Caliper, Left Rear

  • 1x12-Speed Brake-Only Design: Perfect for simplified gravel drivetrains—clean, efficient, and lightweight.
  • Gravel-Tuned Ergonomics: Refined lever body and hood shape designed for comfort with flared drop bars.
  • Secure Grip in All Conditions: Raised, ribbed hood and anti-slip lever surface deliver control on technical terrain.
  • Optimised Weight: At just 188g, the BL-RX825-L lever is 19.5 grams lighter than the RX825 Dual Control version.
  • Enhanced Modulation: The BR-RX820 caliper offers a quicker initial bite and 10% wider pad clearance for quieter braking.
  • Easy Maintenance: Simplified bleeding system reduces downtime and keeps you rolling longer.

Engineered for the evolving demands of modern gravel riding, the Shimano GRX BL-RX825 Brake Lever & BR-RX820 Caliper Kit delivers the ultimate blend of power, control, and comfort for your 1x12-speed gravel setup. Designed as part of Shimano’s groundbreaking GRX RX825 series, this left-hand hydraulic brake-only lever and caliper combination brings refined braking performance and ergonomic innovation to every adventure—whether you’re descending loose singletrack or pushing across rugged, washboard roads.

Gravel Control, Refined
Built with gravel-specific ergonomics at its core, the BL-RX825 features a newly refined body shape optimised for flared drop bars. Its rounder cross-section ensures a natural transition from handlebar to hood, reducing pressure points and enhancing comfort on long, demanding rides.

Raised, ribbed hoods offer a stable, confident grip—even when the trail gets rough—while the anti-slip brake lever coating ensures secure braking control in all conditions, from dusty farm tracks to wet, muddy descents.

Pairing seamlessly with the BR-RX820 caliper, this setup provides consistent, quiet stopping power with improved pad clearance and faster initial engagement. It’s a lightweight, maintenance-friendly system built for riders who demand performance without compromise.

Technical Specifications

  • Orientation: Left-hand brake lever with rear flat mount brake caliper
  • Brake Type: Hydraulic disc brake
  • Brake Fluid: Shimano Mineral Oil
  • Recommended Rotor: RT-CL800
  • Model Numbers: BL-RX825-L (brake lever) / BR-RX820 (caliper)
  • Average Weight: 188g (lever) / 136g (caliper)
  • Kit Includes: BL-RX825 left-hand hydraulic brake lever and BR-RX820 rear brake caliper with hose and pads.