Shimano Tiagra BR-4770 Flat Mount Disc Brake Caliper
| Brand | Shimano |
|---|---|
| Colour | Grey |
The all-new Shimano Tiagra BR-4770 hydraulic disc brake caliper offers greater rider control in all conditions. With convenient One Way Bleeding and easy hose joint system, installation and adjustment are kept simple.
Technology
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.
Ice Technologies piston in order to achieve optimized lightweight, high rigidity and heat dissipation. Oversized pistons transfer hydraulic power directly to the brake pad, and ceramic material is used to avoid heat transfer for constant stable braking, providing efficient stopping power transfer without loss.
One Way Bleeding
“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.
Features
- High performance low profile Tiagra hydraulic road disc brake for efficient braking in all conditions
- Front wheel use for flat mount forks with adapter to flip between 140 and 160mm
- Rear wheel use for 140mm flat mount frames, can be used with adapter for 160mm
- Oversized 22mm ceramic pistons optimized for heat insulation, lightweight and stiffness
- Opposed 2-piston design reduces leading effect and optimal pad wear increases braking control
- Increased pad to rotor clearance reduces the chance of rotor drag
- Forged caliper design is lightweight and rigid
- One way internal fluid circuit makes bleeding easy
- Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid
- Shim-less mounting bracket allows for quick installation and setting up
- Recommended for use with SM-RT64 rotors for optimum braking performance
- Comes complete with K03S resin compound pads
- Inline hose routing for low profile design
