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Girodisc McLaren MP4-12C Rear Rotors

Girodisc McLaren MP4-12C Rear Rotors

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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. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.

Once the Girodisc system is in place, simply replace the cast iron rotor when needed.

When used with performance pads and hi-temp fluid, you have what amounts to a truly amazing solution to overheating or warping rotors.

Sold/priced in pairs.

Fits

McLaren 540C (P13) Coupe 540C 2015-2020
McLaren 570GT (P13) Coupe 570GT 2016-2021
McLaren MP4-12C (P11) Convertible 12C Spider 2012-2014
McLaren MP4-12C (P11) Coupe MP4-12C 2011-2014

Manufacturer fitment

McLaren 540C & 570 GT Without carbon ceramic - Rear
McLaren MP4-12C Without carbon ceramic - Rear

Part number

A2-023

Professional fitting is recommended.

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