Shimano Ultegra R8170 12-Speed Front 2-Piston Hydraulic Brake Calliper

Shimano Ultegra BR-R8170 front disc brake calliper, with 2 pistons and a flat mount fitting. Designed for road bikes with a Ultegra R8100 groupset, it comes with an adapter and pads.

• Fits flat mount frames, adapter for 140 and 160 mm rotors included
• L03A resin pads with fins included in the package, ready to fit
• Aluminium body, weighs just 123 g (front and rear, without lever)
• One-Way bleeding: easier work on the hydraulic circuit
• Uses mineral oil and a SM-BH90-JK-SSR hose, both sold separately

Technical specifications

• Model: BR-R8170-F (front calliper, flat mount)
• Groupset: Ultegra R8100; use: road
• Pistons: 2
• Mount: Flat mount, front; 140/160 mm adapter included
• Rotors: 140 mm and 160 mm; recommended rotor RT-MT800 (140/160 mm); 180 mm listed as compatible
• Included pads: L03A resin with fins
• Fluid: Mineral oil, not included
• Recommended hose: SM-BH90-JK-SSR, not included
• Material: Aluminium
• Weight: 123 g (front and rear, without lever)

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.