Shimano BR-R7170 105 flat mount calliper, without rotor or adapters, rear, black

From Shimano:

• High performance low profile 105 hydraulic road disc brake for efficient braking in all conditions
• Rear wheel use for 140 mm flat mount frames, can be used with adapter for 160 mm
• 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
• 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 Center Lock SM-RT70 rotors for optimum braking performance
• Comes complete with L05A resin compound pads
• Inline hose routing for low profile design