MSW’s Take: We teamed up with GiroDisc to develop a much more affordable brake rotor solution for the Ginetta G56 GT4 race car. These rotors have gone through several tests in real world endurance races, bringing home multiple victories along the way. We’ve even achieved much longer life out of the components by going to a much more traditional pin drive system.
Unlike the Alcon rotors, these GiroDiscs utilize proven and longer lasting bolts and drive pins for attachment. We have found that the tab drive mounting of the OE Alcon rotors is not nearly as durable, with rotor hats (aka bells) often requiring replacement after just one or two rotor replacements. The hard iron rotor impacting the aluminum hats quickly deforms the softer material, whereas the more conventional drive pin hats have lasted us seasons at a time.
Discs are made from a proprietary cast iron, poured and machined in the USA.
These GiroDisc Ginetta G56 GT4 brake rotor replacement rings are sold as pairs (left and right specific vents and slots), with hardware and instructions. Requires use of the GiroDisc hats included with the complete assemblies and are not compatible with the Alcon tab drive hats/bells.
