Shimano BR-R8170 disc brake screws 10 mm

To the delight of riders and mechanics alike, the new ULTEGRA BR-R8170 caliper delivers enhanced modulation, a quieter brake system, and an easier than ever bleed process.

The ULTEGRA R8170 disc brake caliper brings a new level of control to the road cycling world with enhanced modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain.


Features:

- Maintenance-friendly bleeding process


Specifications:

- SERIES: ULTEGRA R8100 Series
- Average weight: 146 (Front) 136 (Rear)
- ICE TECHNOLOGIES pad compatible caliper: Yes
- Brake hose (Kit): SM-BH90-JK-SSR
- Brake type: Hydraulic disc brake
- Caliper fixing bolt_Anti loosen method: Bolt fix pin, snap ring
- Caliper fixing bolt_Tool size: 4 mm
- Fixing screw spec for rear mount_10 mm mount: Yes
- Hose joint: Straight
- Mount type: Flat mount
- ONE WAY BLEEDING: Yes
- Pad mount: Pad axle
- Piston: 2
- Recommended disc brake rotor: RT-MT800
- J-Kit spec (for OEM): Yes
- Oil: SHIMANO Mineral
- Pad_Option 1: L04C Metal
- Pad_Standard 1: K03S Resin
- Pad_Standard 2: L03A Resin
- 10% wider pad clearance decreases brake noise


Technologies:

One Way Bleeding:
- Was developed for quick and easy prevention of air in our hydraulic system. We have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system.
One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.

Ice_technologies:
- The fade, which can occur to disc brake rotor and pad when braking on a long downhill ride for instance, has a negative impact on the braking performance. SHIMANO has adopted ICE TECHNOLOGIES disc brake rotor and ICE TECHNOLOGIES pad to realize the cooling technology for consistent performance. The clad disc brake rotor blade, which has a 3 layer-sandwich structure of stainless steel, aluminum and stainless steel, provides better radiation performance. Also, the radiation fin has been adopted for the pad. Moreover, the clad disc brake rotor blade and the radiator fin provide long pad life, less noise, less fade and lightweight.