Shimano GRX BR-RX400 + ST-RX400 Disc Brake

Shimano GRX BR-RX400 + ST-RX400 disc brake - full control away off the asphalt

The Shimano GRX BR-RX400 + ST-RX400 disc brake offers you full off-road brake control and smooth 10-speed shifting thanks to the Dual Control lever. The GRX BR-RX400 brake caliper with flat-mount design - well known and proven in the Road sector - convinces with its excellent heat management and simple setup. The GRX ST-RX400 10-speed shift/brake hoods were specially designed for Gravel use, with special lever and grip body ergonomics and anti-slip texture. Thanks to this brake you will enjoy the ride off the road even more.

Are you interested in the GRX series? Then have a look at our Shimano gravel site. You will find many more products there.

Specifications:

Series:

GRX RX400

Application:

Gravel, Cyclocross, City & Touring

Gearing:

2-speed, 10-speed

Shifting System:

mechanical

Type:

hydraulic, 2 pistons

Actuation:

mineral oil

Hose:

SM-BH90-JK-SSR

Front Hose Length:

1000 mm

Hose Length (Front/Rear):

1000 mm/1700 mm

Technical Information - Shift/Brake Lever:

Brake Lever Material:

Aluminium

Lever Body Material:

Composite

Clamp Material:

steel

Mount:

clamp (closed)

Reach Adjust:

bolt

Adjustment Options:

reach adjust

Technical Information - Caliper:

Mount:

flat mount

Pads:

resin with cooling fins

Design:

2-piece

Calliper Material:

Aluminium

Piston Material:

resin

Hose Connection:

straight

Compatibility:

Shift/Brake Lever:

Mounting Position:

left for front brake caliper, right for rear brake caliper

Clamp Diameter:

23.8 - 24.2 mm

Front Derailleur:

FD-4700, FD-RX400

Crank:

FC-4700, FC-R460, FC-RS400, FC-RX600-10

Rear Derailleur:

RD-4700-SS, RD-4700-GS, RD-RX400

Cassette:

CS-6700, CS-5700, CS-HG500-10, CS-4600, CS-M980, CS-M771-10, CS-HG81-10, CS-HG62-10, CS-HG50-10

Chain:

CN-M981, CN-M980, CN-HG95, CN-HG94, CN-HG75, CN-HG74, CN-HG54

Additional Brake Lever:

BL-RX812

Brake Caliper:

Brake Rotor:

140 mm, 160 mm, 180 mm (recommended: SM-RT64)

Pads:

organic and sintered; with narrow pad shape; standard and Ice Tech brake pads

Features:

Shift/Brake Lever:

• Dual Control Lever (10-speed) for hydraulic disc brakes
• Gravel-inspired lever and body ergonomics
• anti-slip brake lever, painted
• more control on mixed terrain
• smooth shifts like the of the best groupsets
• funnel venting with M7 funnel
• Optislick inner cable with a minimal galvanic coating for more efficient cable routing and corrosion resistance
• OT-SP41 housing on grip side (OT-RS900 to rear derailleur)

Brake Caliper:

• excellent heat dissipation
• practical tool access
• trouble-free maintenance
• easy to change wheels
• clean bleed system
• perfect for rough terrain
• resin pistons
• painted
• steel bolts (4 mm)

Technology:

STI Dual Control
Shimano Total Integration (STI) means the combination of braking and shifting functions in one lever, which increases safety when riding. By refining the technology, it became possible to make shifting so smooth at the front and rear that they can be triggered with just one finger. Shimano calls such levers Dual Control Levers (DCL).

One Way Bleeding
One Way Bleeding is a technique used on Shimano calipers that facilitates brake bleeding. The hose routing has been optimised so that no air bubbles remain in the brake calliper. In combination with the funnel, the brake can be bled cleanly and easily.

Manufacturer Numbers:

Front:

I-RX400DLF6SC100A

Rear:

I-RX400DRRDSC170A

Contents:

• 1 x Shimano GRX BR-RX400 + GRX ST-RX400 disc brake, front or rear
• 1 x Shimano SM-BH90-JK-SSR brake hose, 1000 mm (front) or SM-BH90-JK-SSR 1700 mm (rear)
• 1 x pairs Shimano resin brake pads with cooling fins
• 1 x disc brake adapter for front 140/160 + 160/180 mm (only for front)
• 1 x hose connection set w/ olives and pins
• 2 x type A caliper bolts (front)
• 2 x caliper bolts for 25 mm frame diameters (rear)
• 1 x shifter cable, 1800 mm (front) or 2200 mm (rear)
• 1 x cable housing, 600 mm (front) or 600 + 300 mm (rear)
• ready for installation, filled, bleeding is recommended after installation

Order Together:

• TL-BH61 tool for insert installation
• FM to FM brake adapter SM-MA-R160 D/D for 160 mm brake rotor on 140 mm FM frame (for rear)
• FM-to-FM brake adapter SM-MA-R160 D/D for 180 mm brake rotor on 160 mm FM frame (for rear)

Optional Accessories:

• Screws for 10/15/20/30/35 mm Frame Diameter