The Girodisc system is a direct replacement for the OE disc
with the addition of our provided caliper spacers. Our rotor is slightly larger than the OEM
rotor at 325mm versus 298mm providing greater braking force and cooling
The central hat section of our rotor is made from strictly
U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our 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 10 high strength alloy steel drive pins, manufactured by Girodisc in
the USA to our 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 classs 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.
Rotor upgrade from the OEM 298mm rotor, to a 2pc 325mm disc providing
greater braking force and cooling capacity.