Shimano GRX RX812 Brake Lever
Best additional braking control for gravel riders seeking versatility.
This in-line hydraulic lever adds a crucial secondary braking point to drop-bar setups, perfect for gravel and mixed-terrain riding. It allows for confident speed control from the tops of the bars, significantly reducing hand fatigue on long, technical tours.
$90.00
More GRX options
Who it's for
- Gravel riders seeking versatile braking options and improved safety.
- Cyclists prioritizing comfort and multiple hand positions on extended journeys.
- Shimano GRX users wanting to expand their existing hydraulic brake setup.
Who should skip it
- Weight-conscious riders or those preferring a minimalist cockpit setup.
- Cyclists with crowded handlebars or specific accessory mounting needs.
- Riders with non-Shimano GRX or mechanical brake systems.
Performance breakdown
Ergonomic Accessibility
Provides a natural, intuitive braking point while riding on the hoods.
Hydraulic Modulation
Delivers smooth, predictable stopping power consistent with primary GRX levers.
Installation Complexity
Requires bleeding hydraulic lines, making setup a task for experienced mechanics.
Build Durability
Robust construction withstands the vibrations and impacts of rugged gravel terrain.
Weight Penalty
Adds minimal mass for the significant gain in safety and control.
System Integration
Seamlessly bridges into existing Shimano hydraulic setups without compromising performance.
Key Specs
Brake Type
Hydraulic Disc
Brake Fluid Type
Mineral Oil
Intended Use
Gravel, Touring, Mixed-terrain
Mounting Position
Handlebar Tops
Number of Fingers
One-finger
Handlebar Compatibility
Drop bars
Compatibility
Hydraulic disc systems
Know before you buy
Still have a question?
Ask Metto anything about the Shimano GRX RX812 Brake Lever before you decide.