shimano br-r9170 dura ace flat mount calliper disc brake

Top of the range, high performance Dura Ace low profile hydraulic road disc brake for efficient braking in all conditions.Features:Rear wheel use for 140 mm flat mount frames, can be used with adapter for 160 mmOversized 22mm ceramic pistons optimized for heat insulation, lightweight and stiffnessOpposed 2-piston design reduces leading effect and optimal pad wear increases braking controlIncreased pad to rotor clearance reduces the chance of rotor dragDirect flat mount and open design allows easy and quick wheel replacementForged calliper design is lightweight and rigidOne way internal fluid circuit makes bleeding easyMineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluidShim-less mounting bracket allows for quick installation and setting upRecommended for use with ice tech freeza centre-lock tr-mt900 rotors for optimum braking performanceComes complete with resin compound aluminium radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg cInline hose routing for low profile design