Shimano GRX RX600 / RX400 Hydraulic Disc Brake & Shifter Set

Shimano GRX RX600 / RX400 Hydraulic Disc Brake & Shifter Set

Shimano GRX is the world's first dedicated component line designed specifically for Gravel bikes (mixed-terrain/gravel). The combination of the BL-RX600 dual control levers and the BR-RX400 hydraulic calipers delivers ultimate control, optimal grip, and powerful braking performance on any challenging terrain.

Detailed Specifications

• Shifter/Brake Lever: Shimano GRX BL-RX600 (Made in Japan ).

• Caliper: Shimano GRX BR-RX400 Flat-mount (Made in Japan ).

• Brake Type: Hydraulic Disc Brake.

• Brake Fluid: Shimano Mineral Oil.

• Rotor Compatibility: Supports 140mm or 160mm rotors (Includes pre-installed Flat-mount adapters as shown).

Key Features & Highlights

1. Gravel-Specific Ergonomic Design

• Excellent Anti-Slip Grip: The surfaces of the hoods and brake levers feature a textured, textured finish , enhancing grip even in wet conditions or when riding without gloves.

• Higher Lever Pivot: Optimizes leverage, reducing hand fatigue during continuous braking on rough, bumpy roads.

2. Stable Braking Performance & Heat Dissipation

• BR-RX400 Caliper: Compact Flat-mount design for low-profile integration and a clean aesthetic closer to the frame/fork.

• Smart Cooling System: The calipers come equipped with finned brake pads (Ice-Technologies), significantly reducing heat buildup and preventing brake fade on long descents.

3. Complete Kit with All Installation Accessories

The set is fully supplied and ready for installation, including:

• A pair of shifters and calipers pre-connected with pre-bled hydraulic hoses.

• Included shift cables.

• Orange bleed blocks to protect the pistons during transport.

• Caliper mounting bolts, washers, olives, and insert pins for hose trimming.

• Genuine Shimano user manuals.

📌 Technical Advice: This product utilizes Shimano Japan's high-precision hydraulic system. To ensure maximum performance and longevity, it is highly recommended to use genuine Shimano mineral oil and authentic replacement parts during routine maintenance.