Shimano GRX ST-RX610 Shift/Brake Lever with BR-RX400 Hyd Disc Brake Caliper - Right/Rear 12-Spd Flat Mnt Caliper For 25mm Mount Black. 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.
- TECH SPECS
| Brake Lever Actuation | Hydraulic |
| Rotor Included | No |
| Color | Black |
| Brake Caliper Mount | Flat Mount |
| Hydraulic Fluid Type | Mineral Oil |
| Brake Lever Use | Right |
| Pad Compound | Resin |
| Rear Der/Shifter Compatibility | Shimano Road |
| Hydraulic Hose Length | 1700 |
| Adjustable Reach | Yes |
| Adjustable Contact Point | No |
| Drivetrain Speeds | 12 |
| Defined Color | Black |
| Front Der/Shifter Compatibility | Shimano Road |
| Shifter/Derailleur Compatibility | Shimano |