GRX ST-RX715 / BR-RX410 Di2 Hydraulic Disc Brake/Shift Lever + Caliper Rear
The Shimano GRX ST-RX715 / BR-RX410 pairs a 12-speed Di2 dual-control lever with a hydraulic disc brake caliper in a single rear unit. The ST-RX715 uses wireless electronic shifting compatible with Shimano Road Di2 drivetrains, while the BR-RX410 flat-mount caliper delivers a quicker initial braking point and 10% wider pad clearance compared to previous GRX generations.
The lever includes a reach adjust mechanism to fit different hand sizes, and button functions can be remapped through Shimano's E-TUBE app. The BR-RX410 ships with L05A-RF resin pads featuring a finned backplate for better heat dissipation during extended descents. One-way bleeding keeps hydraulic maintenance straightforward, and the system runs on mineral oil. A disc brake rotor is not included.
Quick Facts
| Feature | Specification |
|---|---|
| Drivetrain Speeds | 12 |
| Shifter Compatibility | Shimano Road Di2 |
| Brake Caliper Mount | Flat Mount |
| Hydraulic Fluid | Mineral Oil |
| Pad Compound | Resin (L05A-RF with finned backplate) |
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Product images may vary slightly from final specifications.
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