Shimano BR-R9270 Dura Ace Flat Mount Rear Disc Brake Calliper – Black

With an all-new design, DURA-ACE BR-R9270 hydraulic callipers are our most compact yet. MONO-BODY construction ensures lightweight 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 calliper drops weight while also providing increased pad clearance, ensuring a quieter ride. Lastly, a new bleeding process makes maintenance easier than ever.

Key Features:

• 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 an 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 a 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 SM-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
• One-piece structure maximizes stiffness and reduces weight
• 10% wider pad clearance decreases the chance of rotor rub
• Maintenance-friendly bleeding process

Technologies:

Mono-Body
SHIMANO’s MONO-BODY calliper is machined from a single cold-forged block in order to maximize stiffness. A perfect balance of stiffness and weight, the MONO-BODY calliper is a component of our linear response hydraulic disc brake system. Linear response equals strong power and superb controllability.

Ice Technologies
The fade, which can occur to the disc brake rotor and pad when braking on a long downhill ride, for instance, has a negative impact on the braking performance. SHIMANO has adopted ICE TECHNOLOGIES disc brake rotor and ICE TECHNOLOGIES pad to realize the cooling technology for consistent performance. The clad disc brake rotor blade, which has a 3 layer-sandwich structure of stainless steel, aluminium and stainless steel, provides better radiation performance. Also, the radiation fin has been adopted for the pad. Moreover, the clad disc brake rotor blade and the radiator fin provide long pad life, less noise, less fade and lightweight.

One Way Bleeding
“ONE WAY BLEEDING” was developed for quick and easy prevention of air in our hydraulic system. We have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system. One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system