Shimano GRX ST-RX810 single chainring left-hand lever with 1000 mm flat mount brake caliper

The Shimano GRX RX810 lever features advanced ergonomics for improved comfort. The textured, non-slip surface treatment enhances control on technical terrain, making this lever perfectly suited to gravel and cyclo-cross riding.

With a flat-mount design and compact profile, the Shimano GRX BR-RX810 hydraulic disc brake calipers offer greater control on rough off-road rides. The GRX brake caliper features optimum heat dissipation with convenient access to adjustment and bleeding.

Wheel changing is also made easier with the Flat-Mount fixing system.

The Shimano GRX groupset stands out for its Gravel-specific components: Gravel ergonomics, optimised gearshift options, reliability and silent transmission.

Shimano insists that this is not a reworked version of its road components, but a groupset specially adapted to the constraints of Gravel and cyclo-cross riding.

Technical specifications:

- Ergonomic lever and support inspired by Gravel
- Non-slip brake lever for better control of the bike
- Flat Mount brake caliper mounting system
- Practical access to settings with quick and easy bleeding
- Easy wheel replacement
- Reference Shimano: IRX8104DLF6SC100
- Model number: ST-RX810-L / BR-RX810-F
- Genset Shimano: GRX 11v
- Type of brake fluid: mineral oil
- Type of braking: hydraulic
- Type of transmission: mechanical
- Number of gears: single chainring without mechanism
- Supplied without discs