Front disc brake set Shimano GRX ST-RX815(L), BR-RX810(F) Di2 2s left

Shimano GRX Di2 ST-RX815 shift/brake lever
The electronic/hydraulic Shimano GRX Di2 ST-RX815 dual control lever provides Gravel inspired ergonomics. Particularly striking is the shape of the handle whose hood head is raised to prevent misalignment while the recessed finger notch prevents the hand from slipping upwards. Like the handle, also the lever features an anti-slip coating for greater mixed-terrain control.

In terms of shifting performance the 2x11-speed GRX Di2 STI lever can take full advantage of the well-known digital precision of the Shimano Di2 electronic shift systems and the Synchronized Shifting technology. In contrast the braking performance is optimized by the brake lever´s rotary axle which is positioned 18 mm higher than usual and Shimano´s SERVOWAVE technology improving the lever´s modulation ability.

In addition, the programmable Di2 shift/brake lever features three switches (two on the side and one on the hood´s top) that can be used to operate third-party devices such as compatible lights or bike computers. In order to meet the individual needs of the driver, the hydraulic brake lever offers reach and free stroke adjustment as well.

Number of E-Tube ports: 2

Shimano GRX BR-RX810 disc brake caliper
Never hesitate to tackle rough surfaces with the hydraulic Shimano GRX BR-RX810 caliper. In doing so Ice Tech ensure excellent heat dissipation while the BR-RX810´s 2 ceramic pistons guarantee excellent braking performance under all conditions. The Flat Mount system makes it possible to attach the disc brake caliper directly at frame or fork. Trouble-free and simple maintenance is provided by the proven One Way Bleeding concept and the Easy Hose Joint System which simplifies brake hose exchanges (brake hose sold separately).

Features - Shimano GRX Di2 ST-RX815 2-speed STI Dual Control + BR-RX810 Disc Brake front

• Excellent heat dissipation

• Simple wheel replacement

• Easy and clean bleeding system

• Simple set up and maintenance

• Raised hood head prevents hand misalignment and slippage

• Recessed finger notch prevents upward slipping

• Anti-slip texture and brake lever coating

• Improved braking input performance

• Higher brake lever axis and curved brake lever

• Improved grip and confidence on choppy surfaces and descents

• Higher braking efficiency reduces fatigue on long rides

Product features

• Use: Gravel, Road, Cyclocross

• Group: GRX Di2

• Model: ST-RX815

• Type: Dual-Control (STI)

• Handlebar mounting: left

• Gear rear: 2-speed

• Optical gear display: No

• Lever reach adjust: Yes, with tool

• Handlebar diameter: 23.8mm/24.2mm

• Brake-type: Hydraulic Disc Brake

• Brake caliper: BR-RX810-L

• Brake mounting: Flat-Mount

• Brake pads: L03A Resin with Fin

• Brake hose: SM-BH90-JK-SSR front 1000mm (shortable)

• One-Way bleeding: Yes

• Brake fluid: Mineral oil

• Recommended brake rotor: SM-RT64, SM-RT70, SM-RT800

• Master unit: No

• Firmware update by E-tube Project: Yes

• Remote switch: Yes

• E-tube port (pcs): 2

• E-tube connector (pcs): 0

• Port for remote sprinter shifter (pcs): 0