Shimano Ultegra BR-R8170 12-Speed Flat Mount Disc Brake

Ultegra hydraulic road disc brake offer an ideal balance of light weight and efficient braking, making it the perfect choice for both enthusiast and competitive riders.

Front wheel use for flat mount forks with adapter to flip between 140 and 160 mm. 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. Direct flat mount and open design allows easy and quick wheel replacement.

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 Ice Tech FREEZA Center Lock SM-MT800 rotors for optimum braking performance. Comes complete with resin compound aluminium radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg C.

Specification

Inline hose routing for low profile design Separate bleed port and valve screw for improved bleeding process Forged calliper design is lightweight and rigid One way internal fluid circuit makes bleeding easy