GRX ST-RX400 Brake/Shift Lever & Disc BrakeGravel inspired Dual Control shift/brake lever and bracket ergonomics Anti-slip brake lever Same light shifting operation as top tier systems Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences Compatible only with FD-4700 and FD-RX400 front derailleurs and RD-RX400 and RD-4700 rear derailleurs
| Rotor Included | No |
| Color | Black |
| Brake Caliper Mount | Flat Mount |
| Hydraulic Fluid Type | Mineral Oil |
| Brake Lever Use | Left, Right |
| Pad Compound | Resin |
| Rear Der/Shifter Compatibility | Shimano Road |
| Hydraulic Hose Length | 1000, 1700 |
| Adjustable Reach | Yes |
| Adjustable Contact Point | No |
| Drivetrain Speeds | 10 |
| Defined Color | Black |
| Front Der/Shifter Compatibility | Shimano Road |
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