These GiroDisc 2-piece rotors are a direct replacement for the rear rotors on the CT4-V Blackwing. Our 2-piece, fully floating assemblies help shed unsprung weight and rotating mass from the front axle of the vehicle.
The rotor rings are machined from a proprietary casting made of high-carbon steel formulated to GiroDisc’s specifications. This superior metallurgy results in a rotor that holds up better, and the 48 curved vanes act as a centrifugal pump pulling air in through the hub to effectively cool the rotors under hard use. The 2-piece design means a reusable hat which can be attached to new rings (part number D2-318) when they need to be replaced.
All major components including the hats, rotor rings, and drive pins are manufactured in-house at our facility in Bellingham, WA from domestically sourced materials. The hat is made from 6061-T6 aluminum and coated in a black anodize finish. The drive pins are made from a high-strength steel alloy and cadmium-plated for corrosion resistance. All rotors are assembled with spring clips and Belleville washers for race-ready float while also being street-friendly with no noise from loose hardware.
The minimum thickness at which we recommend replacing these rings is 26mm. We also recommend replacing them if a crack leads to the edge of the ring.
Sold and Priced Per Pair
Girodisc occupies a unique place in the brake industry market by being the first direct replacement 2-piece brake rotor for performance cars. The team is committed to creating an innovative and more beneficial brake rotor system that is equal to the capabilities of the rest of the brake system. Girodisc’s full floating design is unique to their rotors and are available for a wide range of exotic and sports cars as well as some luxury vehicles.
