

Product Details
Trust Shimano For Flat Mount Braking
Featuring a low-profile flat mount design, this Shimano BR-RX400 GRX Rear Disc Brake Caliper combines sleek design with refreshing efficiency. You'll never hesitate to tackle rough surfaces again with the excellent heat dissipation involved here, and the hydraulic brake technology provides greater control no matter where you find yourself riding.. Shimano GRX rear disc brake caliper (BR-RX400)
. Front spec with adaptor
. Excellent heat dissipation
. Flat mount
. Simple set up and maintenance
. Convenient tool access
. Easy hose joint system (J-kit)
. Simple wheel replacement
. Easy and clean bleeding system
. ICE TECHNOLOGIES pad compatible caliper
. ONE WAY BLEEDING
Specifications
. Product: Shimano BR-RX400 GRX Rear Disc Brake Caliper
. Colour: Black
. Series: GRX 10-speed
. Brake Type: Hydraulic disc brake
. Caliper Fixing Bolt/Anti-Loosen Method: Bolt fix pin, snap ring
. Mount Type: Flat mount
. Pad Mount: Pad axle
. Recommended Brake Lever: ST-RX400
. Recommended Disc Brake Rotor: SM-RT64
What Sets Alchemy Apart
The best pre-owned bikes
When you buy a pre-owned bike from Alchemy Cycle Trader, you’re getting more than just a great deal. Every bike is roadworthy certified, comes with a 3-month warranty, and includes your first service free - so you can ride away with complete confidence.
Buy with confidence
In-house Active Thermography Carbon Fibre Testing for extra peace of mind on pre-owned bikes.
Learn more about our carbon testing.
Expert Servicing & Ongoing Support
Our professional workshop team is here to keep your bike running at its best long after you’ve taken it home. From routine servicing to performance tuning, our qualified mechanics ensure your ride stays smooth, safe, and ready for every adventure. Whether it’s your first free service or future maintenance, you can count on Alchemy Cycle Trader for trusted support and expert care. Learn more about our workshop services.