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Shimano GRX Hydraulic Disc Brake Caliper – BR RX400-R (Rear)


The Shimano GRX BR-RX400 hydraulic brake caliper is Shimano’s new addition to their GRX 10-Speed series of groupsets and components. The BR-RX400 provides excellent braking power and control over mixed terrains, high speed, and technical corners. It comes with all the convenient features like a flat mount, an easy hose joint system (J-Kit), a one-way bleeding system, and ice technology for better heat dissipation.

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  • Series: GRX 10-Speed
  • Type: Hydraulic Disc Brake Caliper
  • Caliper Position: Rear
  • Mount Type: Flat Mount
  • Caliper Type: 2-Piston
  • Recommended Brake Hose Kit: SM-BH90-JK-SSR, SM-BH90-J-SSR
  • Recommended Rotor: SM-RT64
  • Recommended Brake Lever: ST-RX400
  • Recommended Brake Fluid: Shimano Mineral Oil
  • Compatible Brake Pads: K04S-MX Metal (w/o fin), K05S-RX Resin (w/o fin), L04C-MF Metal (w/ fin), L05A-RF Resin (w/ fin)


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