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Purchase Girodisc Front Rotor Set
  • Girodisc Front Rotor Set SKU: GIROA1-291

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  • $1,900.00

  • Add Griodisc Brake Pads:
  •  


The Girodisc system is a direct replacement for the OE disc on the GT4 RS with OEM iron rotors.  No modifications are necessary, and it allows the use of unmodified factory pads. The disc will bolt directly to the car and work with factory calipers.

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 12 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 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.

Fits the following models:- GT4 RS models with standard brakes (red calipers) - 2023-2024

2-Piece design. Comes with the left and right rear rotor. Made by Girodisc. Intended for off road use only. Professional installation required. Racing brake discs need to be regularly inspected by certified mechanics.  File photo shown.


New Option!  Add Girodisc GP40 Track Brake Pads: 

Race-ready bite, without sacrificing your rotors.  Comparible to Pagid RS29's.  Girodisc's GP40 compound falls between a sprint and endurance compound.  It maintains good bite and pedal feel while being friendly to your rotors.  They are a favorite amount track day enthusiasts and share a lineage with compounds found on cars competing in legendary races like the 24 Hours of Le Mans.  These pads have been race-tested and hold up to brutal track conditions.  

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Girodisc Front Rotor Set
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