A central concern of gravel riders is a reliable braking system with sufficient power reserves, the Shimano GRX 2-fold STI lever ST-RX810 with BR-RX810 flat-mount brake caliper for hydraulic disc brakes are characterized by excellent deceleration ;power to maintain control on steep, demanding or even surprising descents.
All STI units are characterized by an 18 mm higher pivot axis of the brake lever, a curved lever shape and non-slip textures on the contact surfaces, which ensure optimal grip even on the roughest terrain. The STI lineup of the GRX family is supplemented by the 1x11-speed RX800 and RX600 STIs for links without switching or DSP functionality including the 1x11 Di2 version (ST-RX815), whose three switches (two on the side and one on the top of the horn) can be used to operate third-party devices such as compatible lights or computers.
The design of the GRX brake calipers is reminiscent of the Shimano flat-mount models from the racing bike sector and delivers equally high braking performance. You also have established features such as one-way bleeding and the ICE-TECHNOLOGIES heat management system with brake pads and brake discs with cooling fins for maximum fading resistance.
The fact that Shimano can present the GRX, the first gravel-specific component family that is designed equally for fast progress and safe bike handling on loose surfaces, is the result of intensive and extensive research -, testing and development process that incorporated information and feedback from countless riders who ride trails, forest roads, gravel roads or asphalt around the world.
Features:
- Excellent heat dissipation
- Easy wheel change
- Simple, clean ventilation system
- Easy setup and maintenance
- Lever and bracket ergonomics tailored to gravel conditions
- Anti-slip brake handle
- More control on changing terrain
- Switching is just as easy as with high-quality systems
Product features:
- Area of application: Gravel, Road, Cyclocross
- Group: GRX Model: ST-RX810
- Type: Dual Control (STI)
- Cultivation: left
- Rear switching levels: 2-fold
- Optical gear indicator: no
- Reach width adjustment: Yes, with tool
- Handlebar diameter: 23.8mm/24.2mm
- Brake type: Hydraulic brake system (disc brake)
- Brake caliper: BR-RX810-L
- Brake caliper mount: Flat-Mount
- Brake pad: L03A resin with cooling fins
- Brake line: SM-BH90-JK-SSR front 1000mm (can be shortened)
- One-way venting: Yes
- Brake fluid: mineral oil
- Recommended brake disc: SM-RT64, SM-RT70, SM-RT800
Material:
- Lever: aluminum, painted
- Brake caliper: aluminum, painted
Weight:
- STI unit: approx. 300g
- Brake caliper: approx. 140g
Scope of delivery:
- 1 GRX 2-fold STI unit ST-RX810 left
- 1 GRX BR-RX810 flat-mount front brake caliper
- 1 brake pads L03A resin with cooling fins
- 1 brake line SM-BH90-JK-SSR 1000 mm (can be shortened)
- 2 mounting screws for brake caliper
- 1 line connection kit
- 1 inner shift cable (Optislick) 1800 mm
- 1 inner shift cable outer casing SIS OT-SP41 600mm
- End cap + end sleeve
The SM-BH90-JK-SSR brake line is filled with mineral oil and pre-assembled on the BR-RX810 brake caliper! Brake disc SM-RT64, SM-RT70 and SM-RT800 not included!