With an all-new design, the DURA-ACE BR-R9270 hydraulic calipers are our most compact yet. MONO-BODY construction ensures light weight and rigidity, proving that good things can come in small packages. With an all-new MONO-BODY construction design, high performance braking has reached a new peak. The BR-R9270 caliper drops weight while also providing increased pad clearance, ensuring a quieter ride. Lastly, a new bleeding process makes maintenance easier than ever. Top of the range, high performance Dura-Ace low profile hydraulic road disc brake for efficient braking in all conditions 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 Improved pad to rotor clearance with 10% increase pad clearance over BR-B9170 reduces the chance of rotor drag Direct flat mount and open design allows easy and quick wheel replacement Forged calliper 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 Ice Tech FREEZA Center Lock RT-MT900 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 Separate bleed port and valve screw for improved bleeding process