Shimano GRX Di2 Hydraulic Brake Lever Set with Calipers for Gravel Bikes

Product Description
The Shimano GRX ST-RX815 left Di2 shift/brake lever with BR-RX810 caliper is built for gravel and mixed-surface riding where control, comfort, and confident braking matter most. This setup combines 11-speed Di2 electronic shifting with a hydraulic flat mount disc brake, giving riders crisp front shifting and strong brake performance in rougher conditions.

The GRX hood and lever shape are designed specifically for off-road drop-bar use, with a raised hood head, recessed finger notch, and anti-slip texture to improve grip and hand security on choppy terrain and descents. This version comes pre-bled with a 1000mm hose and uses resin pads.

Key Features

• Genuine Shimano GRX ST-RX815 left Di2 shift/brake lever
• Includes Shimano BR-RX810 flat mount caliper
• Designed for 11-speed Di2 gravel and all-road setups
• Raised hood head helps prevent hand misalignment and slippage
• Recessed finger notch helps prevent upward slipping
• Anti-slip texture and brake lever coating for better control
• Higher brake lever axis and curved lever improve braking efficiency
• Tooled reach adjust for fit tuning
• BR-RX810 caliper offers strong multi-surface brake control
• Caliper features Shimano ICE technology for heat dissipation
• Comes pre-bled
• Non-retail / zero packaging

Specifications

• Brand: Shimano
• Series: GRX
• Model: ST-RX815 / BR-RX810
• Product Type: Di2 Shifter / Hydraulic Brake Lever with Caliper
• Position: Left
• Drivetrain Speeds: 11
• Shift Type: Electronic Di2
• Brake Lever Use: Left
• Brake Caliper Mount: Flat Mount
• Hydraulic Hose Length: 1000mm
• Hydraulic Fluid Type: Mineral Oil
• Pad Compound: Resin
• Rotor Included: No
• Adjustable Reach: Yes
• Adjustable Contact Point: No
• Front Derailleur / Shifter Compatibility: Shimano Road Di2
• Rear Derailleur / Shifter Compatibility: Shimano Road Di2
• Color: Black
• Weight: 384g
• Manufacturer Part Number: IRX815DLF6SC100

Compatibility
Compatible with:

• Shimano 11-speed Road / GRX Di2 systems
• Front shifting applications using compatible Shimano Road Di2 front derailleurs
• Bikes using a flat mount hydraulic disc brake setup
• Shimano brake systems using mineral oil

Please confirm hose length, mount type, and drivetrain compatibility before purchase.

Included

• Shimano GRX ST-RX815 left Di2 shifter / brake lever
• Shimano BR-RX810 flat mount caliper
• 1000mm hydraulic hose
• Resin brake pads installed or included as described

Not Included

• Rotor
• Brake adapter
• Retail packaging

Warranty and Notes

• Non-retail pack / zero packaging
• Comes pre-bled
• Designed for gravel and mixed-surface riding
• Includes only what is shown or described

Condition

• New
• Genuine OEM product
• Non-retail pack
• Includes only what is shown or described