SHIMANO GRX Disc Brake Assembled Set J-Kit Direct ST-RX810R BL-RX810R for 25mm Mount

The SHIMANO GRX Disc Brake Assembled Set J-Kit Direct ST-RX810R BL-RX810R is built to deliver dependable braking performance, smooth control, and excellent rider confidence for gravel and road cycling applications. Designed with Shimano’s advanced braking technologies, this complete disc brake setup offers strong stopping power even in demanding riding conditions. The integrated hydraulic system helps deliver consistent braking performance with improved modulation and control. Featuring an elegant flat mount design, the brake assembly blends cleanly into modern bike frames while maintaining a refined appearance. The ergonomic hood design improves hand comfort for long-distance riding, while the electronic shift and brake lever system creates a more intuitive riding experience. With Shimano E-Tube compatibility, riders can further personalize settings to match their riding style and preferences.

Key Features

• Hydraulic Disc System: Provides powerful and controlled braking performance

• Electronic Shift/Brake Integration: Delivers smooth operation with intuitive controls

• Ice Technology Support: Helps improve heat management during braking

• Flat Mount Design: Creates a clean and modern bike integration

• Ceramic Pistons: Supports efficient braking response and thermal stability

• Ergonomic Hood Shape: Offers enhanced comfort and grip during long rides

• E-Tube Compatible: Allows multiple customization and programming options

• J-Kit Assembly: Simplifies installation and setup process

Product Specifications

• Brand: Shimano

• Series: GRX

• Model: ST-RX810R / BL-RX810R

• Product Type: Hydraulic Disc Brake Assembled Set

• Brake Type: Hydraulic Disc Brake

• Mount Type: 25mm Mount: Flat Mount Compatible

• Piston Type: 2 Ceramic Pistons: Per caliper

• Technology: Ice Technology: Heat management support

• Lever Type: Electronic STI Shift/Brake Lever

• Platform: Shimano E-Tube

• Application: Gravel and Road Cycling

Brake Performance & Control

The Shimano GRX braking system is engineered to provide consistent stopping performance across different riding conditions. The hydraulic setup delivers smooth lever feel with better modulation, allowing riders to control braking force more precisely. The ceramic piston design also helps improve thermal efficiency during aggressive braking situations.

Easy Operation / Usage

• Install the brake assembly on compatible flat mount bike frames

• Connect and configure electronic shifting through Shimano E-Tube settings

• Adjust lever position for rider comfort

• Use hydraulic disc brakes for smooth and controlled stopping performance

• Fine-tune system settings based on riding style and preferences

Why Choose This Product

• Provides powerful and reliable braking performance

• Improves riding confidence on mixed terrain routes

• Ergonomic design increases rider comfort

• Electronic integration enables smarter shifting performance

• Shimano engineering ensures durability and long-term reliability

• Clean design integrates well with modern bicycles

In the Box

• Shimano ST-RX810R Brake/Shift Lever

• Shimano BL-RX810R Brake Lever