Shimano Dura-Ace BR-R9170 Flat Mount Disc Brake Caliper

The Dura-Ace R9100 series of Flat Mount disc brakes bring powerfully integrated brake performance to the highest
rungs of road cycling. The R9170 calipers are light weight while offering better control and confidence in race
conditions.

Technology

Ice Technologies Freeza

Ice Technologies combined with Freeza disc brake rotor construction rapidly dissipates heat for more consistent
braking performance in extreme conditions, longer pad life, and less brake fade and noise.

• Lightweight clad rotors with heat dissipating paint on exposed aluminum layer segments provide superior
  cooling, consistent brake performance, and lighter operation under all conditions
• Clad brake pads with Aluminum/Stainless fins support rapid heat dissipation which helps reduce maintenance,
  provide longer pad life, and create less brake fade and noise

Ice Technologies and Freeza provide consistent braking performance with longer pad life, less brake fade and noise.

The lightweight and highly efficient three-layer sandwich structure of stainless steel–aluminum–stainless steel
enhances heat dissipation.

140°C reduction in heat (vs stainless steel disc brake rotor)

Reduce more 10°C by high heat dissipation paint (equipped: SM-RT900 and RT-MT900)

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.

Features

• Top of the range, high performance Dura-Ace low profile hydraulic road disc brake for efficient braking in
  all conditions
• Rear wheel use for 140mm flat mount frames, can be used with adapter for 160mm
• Oversized 22mm ceramic pistons optimized for heat insulation, lightweight and stiffness
• Opposed 2-piston design reduces leading effect and optimal pad wear increases braking control
• Increased pad to rotor clearance reduces the chance of rotor drag
• Direct flat mount and open design allows easy and quick wheel replacement
• Forged caliper 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 Centre-Lock SM-RT900 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