Product Details
The Shimano Ultegra BR-R8170 Hydraulic Disc Brake Caliper offers riders and mechanics improved performance with its advanced modulation and quieter braking system. This new caliper provides a more responsive braking feel and a quicker initial bite, enhancing control on the road. Despite its compact design, it operates with less noise and is easier to maintain. The 10% wider pad clearance reduces brake noise, while the user-friendly bleeding process simplifies maintenance.
| Average weight | 123 |
| Brake type | Hydraulic disc brake |
| Brake hose (kit) | SM-BH90-JK-SSR |
| Hose joint | Straight |
| Brake hose color (kit) | Black |
| J-Kit spec (for OEM) | ✔ |
| ICE TECHNOLOGIES pad compatible caliper | ✔ |
| Pad (Standard 1) | K05S-RX Resin (w/o fin) |
| Pad (Standard 2) | L05A-RF Resin (w/ fin) |
| Pad (Option 1) | L04C-MF Metal (w/ fin) |
| Fixing screw spec for rear mount (10 mm mount) | ✔ |
| Fixing screw spec for rear mount (15 mm mount) | ✔ |
| Fixing screw spec for rear mount (20 mm mount) | ✔ |
| Fixing screw spec for rear mount (25 mm mount) | ✔ |
| Fixing screw spec for rear mount (30 mm mount) | ✔ |
| Fixing screw spec for rear mount (35 mm mount) | ✔ |
| Recommended brake lever | ST-R8170 |
| Recommended disc brake rotor | RT-MT800 RT-CL800 |
| Oil | SHIMANO mineral |
| ONE WAY BLEEDING | ✔ |
| Mount type | Flat mount |
| Piston | 2 |
| Caliper fixing screw (Tool size) | 4 mm |
| Caliper fixing screw (Anti loosen method) | Screw fix pin + Snap ring |
| Pad mount | Pad axle |