Girodisc A1-232 2-Piece Slotted Front Brake Rotor Upgrade, 2012+ Nissan GT-R R35 DBA

Description

Upgrade the braking performance of your 2017+ Renault Megane IV RS with Girodisc 2-piece Brake Rotors A1-231.

Our replacement rings are sold in pairs and include replacement hardware. The only parts you will reuse are your existing GiroDisc hats.

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 12 high-strength alloy steel drive pins, manufactured by Girodisc to our own specifications and cadmium-plated for 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.