The Shimano GRX BR-RX410 is a front hydraulic disc brake caliper with a flat-mount, 2-piston layout. It offers 10% wider pad clearance than standard GRX calipers, which helps reduce brake noise, and it incorporates a One Way bleeding system that simplifies maintenance. This caliper delivers steady stopping power across gravel and mixed-terrain riding conditions, making it suitable for front wheel setups.
This caliper includes L05A-RF resin pads with a finned backplate for improved heat dissipation. It ships with a bracket compatible with 140mm or 160mm rotors, assembled for 160mm use; the rotor itself is not included. The hydraulic system runs on mineral oil fluid.
Quick Facts
| Feature |
Specification |
| Brake Caliper Type |
Flat Mount, Front |
| Piston Count |
2 |
| Pad Compound |
Resin with finned backplate (L05A-RF) |
| Hydraulic Fluid |
Mineral Oil |
| Rotor Compatibility |
140/160mm (bracket included, assembled for 160mm) |