Ultegra hydraulic road disc brake offer an ideal balance of light weight & efficient braking, making it the perfect choice for both enthusiast & competitive riders. Front wheel use for flat mount forks with adapter to flip between 140 & 160 mm. Oversized 22mm ceramic pistons optimized for heat insulation, lightweight & stiffness. Opposed 2-piston design reduces leading effect & optimal pad wear increases braking control. Increased pad to rotor clearance reduces the chance of rotor drag. Direct flat mount & open design allows easy & quick wheel replacement. Forged calliper design is lightweight & rigid. One way internal fluid circuit makes bleeding easy. Mineral oil brake fluid is non-corrosive & less hazardous than conventional hydraulic brake fluid. Shim-less mounting bracket allows for quick installation & setting up. Recommended for use with Ice Tech FREEZA Centre-Lock SM-RT800 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. Inline hose routing for low profile design.