A2-023 Girodisc 2pc Rear Brake Rotors (McLaren MP4-12C)

A2-023 Girodisc 2pc Rear Brake Rotors (McLaren MP4-12C) FITS: MCLAREN MP4-12C (STEEL ROTOR) The Girodisc system is a direct replacement for the OE disc on all vehicles that came equipped with cast iron rotors from the factory. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is made from cast iron to the same specification and material as used by professional racing organizations. It is a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the r