shimano br-4770 tiagra calliper flat mount rear disc brake

High performance low profile Tiagra 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 dragForged 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 sm-rt64 rotors for optimum braking performanceComes complete with k03s resin compound padsInline hose routing for low profile design