The Shimano GRX ST-RX610 dual control lever delivers light and responsive shifting for mixed-terrain riding (Note: BR1057 is a left non-shift variation for 1x set ups) . The textured hood and anti-slip brake lever surface increase control on bumpy terrain. The GRX BR-RX400 2-piston flat mount hydraulic disc brake caliper features a low-profile design with ICE technologies to provide greater control and excellent heat dissapation for mixed terrain riding.
| Brake Lever Actuation | Hydraulic |
| Double or Triple | Double |
| Rotor Included | No |
| Brake Caliper Mount | Flat Mount |
| Brake Lever Use | Left, Right |
| Drivetrain Speeds | 12 |
| Front Der/Shifter Compatibility | Shimano Road |
| Shifter/Derailleur Compatibility | Shimano |
| Color | Black |
| Hydraulic Fluid Type | Mineral Oil |
| Pad Compound | Resin |
| Hydraulic Hose Length | 1000, 1700 |
| Adjustable Reach | Yes |
| Adjustable Contact Point | No |
| Defined Color | Black |
| Rear Der/Shifter Compatibility | Shimano Road |
If you don't see exactly what you need or have questions about any product, contact us and we'll do our best to answer your questions and help you find what you need.
