Description

Shimano GRX Rear Hydraulic Disc Brake Kit – ST-RX600 Lever (Right) + BR-RX400 Caliper J-Kit – Black

Get maximum braking control and crisp shifting precision on unpaved roads: discover the Shimano GRX Rear Hydraulic Disc Brake Kit (ST-RX600 Lever + BR-RX400 Caliper)—now on special offer for just €179.90 down from €271.99 with Free Shipping across Italy. Supplied in a J-Kit Direct configuration (including a 1700 mm hydraulic hose and a 2200 mm shift cable), this kit pairs the anti-slip ergonomics of the ST-RX600 Dual Control lever with the stopping power and heat dissipation of the BR-RX400 Flat Mount caliper equipped with finned resin pads.

• Free Shipping Promotion: Complimentary delivery included for all orders across Italy

• Easy-to-Install J-Kit Direct System: Pre-bled hydraulic system that simplifies internal hose routing through the frame

• Gravel-Specific Ergonomics (ST-RX600): Textured anti-slip lever body with a raised pivot point for effective braking lever action even from the hoods

• Advanced Heat Dissipation (Ice Technologies): Resin brake pads equipped with cooling fins to prevent heat buildup on long descents

• Complete Cable & Hose Set: Includes a 1700 mm hydraulic hose and a 2200 mm shift cable ready for installation

📖 DETAILED DESCRIPTION

The kit consisting of the Shimano GRX ST-RX600 (Right) lever and the BR-RX400 (Rear) caliper sets the benchmark for shifting and braking performance on modern Gravel and All-Road bikes.

Ergonomics & Modulation of the ST-RX600 Lever

The GRX ST-RX600 Dual Control shifters were designed around off-road riding biomechanics. The anti-slip hood texture ensures a firm grip even in mud and rain. The lever pivot point is positioned 18 mm higher compared to standard road shifters, allowing riders to apply powerful braking force effortlessly even when riding on the hoods.

Stopping Power & Clean Setup with BR-RX400

The 2-piston BR-RX400 Flat Mount caliper offers outstanding braking performance and modulated feedback across all surfaces. The integration of finned resin pads dramatically reduces heat accumulation during steep, prolonged descents. Additionally, Shimano's J-Kit (Joint-Kit) technology ensures a clean, hassle-free installation even on frames with internal cable routing.

📦 WHAT'S IN THE BOX

• 1x Shimano GRX ST-RX600 Right Shift/Brake Dual Control Lever (11-speed)

• 1x Shimano GRX BR-RX400 Rear Disc Brake Caliper (Flat Mount)

• 1x Shimano SM-BH90-JK-SSR Hydraulic Hose 1700 mm (pre-bled)

• 1x Shimano Shift Cable 2200 mm + OT-SP41 outer casing

• 1x Pair of Finned Resin Brake Pads (L03A/L05A Resin Ice-Tech)

• Caliper mounting bolts (for rear frame mount thickness 25 mm)

📊 TECHNICAL SPECIFICATIONS TABLE

❓ FREQUENTLY ASKED QUESTIONS (FAQ)

Q: What is Shimano's J-Kit (Joint-Kit Direct) technology?

R / A: J-Kit is a system where the hydraulic hose is pre-bled with mineral oil and sealed, while the lever reservoir also holds fluid. This makes routing the hose internally through the frame straightforward without losing fluid before making the final connection.

Q: What rear frame thickness are the included mounting bolts designed for?

R / A: The kit includes standard hardware suitable for frame chainstays/seatstays with a Flat Mount bracket thickness of 25 mm.

Q: Is free shipping valid for all of Italy?

R / A: Yes, free shipping for this item is included in the purchase price for all delivery destinations within Italian national territory.