Ultegra BR-R8170

The new ULTEGRA BR-R8170 hydraulic disc brake caliper has a refined brake caliper design, delivering a quieter brake system. The new brake calipers boast a 10% increase in pad to rotor clearance to reduce noise while a separate bleed port and valve screw improve the bleeding process so that it’s now possible to bleed the system without removing the caliper from the frame. More fine-tuned control and heightened braking performance, thanks to SERVO WAVE Technology allowing for a faster initial bite point followed by a wider control area 13% wider control area from the brake lever 10% wider pad clearance Easier bleeding process Attributes Fluid Mineral oil Brake Material Aluminum Caliper mount Flat mount Disc Diameter Not included Primary Color Black