A1-183 Girodisc 2pc Front Brake Rotors


A1-183 Girodisc 2pc Front Brake Rotors



This Girodisc system is a direct replacement for the OEM front CCM rotors on the 458 Challenge, although a different brake pad with an annulus (pad swept area) of 66 mm or less must be used. We suggest the Pagid 8081, the most popular pad used with Girodisc rotors on the 458 Challenge. The lower-annulus design of the Girodisc rotors keeps weight low without sacrificing braking performance.

The central hat section of the Girodisc rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from their own 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 rotor and hat have a floating mount system, which utilizes 12 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 action 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.

Sold/priced in pairs.

People often buy

Total price: $1,900.00