Shimano 105 R7170 Front 12-Speed 2-Piston Disc Brake Calliper

The Shimano 105 BR-R7170 front disc brake calliper is hydraulic with 2 pistons and a Flat Mount fitting. It is for riders building a road bike with disc brakes who want controlled braking.

• Fits 140 mm and 160 mm rotors, adapter included
• Road Flat Mount fitting, for frames with this standard
• More space between pads and rotor: 10% more clearance than the previous generation
• Pre-installed L05A-RF resin pads with heat-dissipating fins
• To complete the system: ST-R7170 lever and SM-RT70 or SM-RT64 rotors

Technical specifications

• Model: BR-R7170-F
• Mounting type: Flat Mount, road
• Material: Aluminium
• Brake type: Hydraulic disc, 2 pistons
• Fluid: Mineral oil
• Pads: L05A-RF Resin with Fin
• Compatible rotors: 140 mm and 160 mm; supplied with adjustment plates for both sizes
• Pad clearance: 10% more than the previous generation
• Recommended rotors: SM-RT70, SM-RT64 (140 mm/160 mm)
• Recommended lever: ST-R7170

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.