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PRODUCT SPOTLIGHT: GiroDisc Rotors

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GiroDisc is a Braking Technology Company dedicated to developing the best quality high performance braking components and solutions. We opened up a box of GiroDisc 380mm Front 2-piece Upgraded Rotors for McLaren MP4-12C to give you a closer look at the industry-leading quality you can expect.

GiroDisc is guided under the direction of company Principal Martin Meade, who spent five years as an Engineer with Porsche Engineering Services, where he played a role in developing current Porsche technology. Martin began his engineering career working in Aerospace, developing tools and components for special projects. Before working with Porsche, Martin learned a great deal about vehicle design and technologies by working with several vehicle design and development firms. Martin has enlisted help from key sources such as a former Road Testing engineer and Design Engineer for Brembo North America in the High Performance division, Eric Dahl. With lessons learned at Brembo, and experience in prototype and racing car design, Eric has developed a broad spectrum of engineering capabilities in the world of high performance automobiles, and specifically the technologies for developing braking systems.

GiroDisc designs and engineers the replacement discs after documenting and studying the OE brake system and specifically the disc design. After analyzing the data and determining how best to maximize the benefit of the new disc, the design process is carried out using 3D CAD-CAE (Computer aided drafting, Computer aided engineering). Prototypes are constructed and tested with a vehicle. When the GiroDisc team is satisfied that the disc will meet the goals established for the vehicle, only then will it be released for sale.

Open the box and you'll see each rotor is nicely packaged with instructions, spacers, and more information.

The central hat section of each rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from proprietary cast iron, poured in the USA and machined from start to finish in house at GiroDisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc. The larger 380mm front rotors are greater heat sinks resulting in increased performance on the track, a reduction in brake fade, and improved brake component life. The rotor and hat have a floating mount system, which utilizes 8 or 10 high strength alloy steel drive pins, manufactured by GiroDisc in the USA to their 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 grade 12 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. 

For the MP4-12C application, caliper spacers are included to allow the front calipers to accommodate the larger 380mm rotors (up from 370mm). GiroDisc delivers a bolt on solution so you can get quickly get back out enjoying your McLaren.

Fabspeed Motorsport is the authority in McLaren performance. With two development cars (MP4-12C and 570S) we're continuously developing the best components for your super cars. Contact us for all of your needs, from brakes to exhaust systems to custom builds exceeding 700whp.

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