Giro Disc Racing Rotors replacement for Dodge ACR Viper with CCM brake package

Giro Disc Racing Rotors replacement for Dodge ACR Viper with CCM brake package

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The Girodisc system is a direct replacement for the Viper ACR with CCM brake package OE discs. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency.  This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response.


  • Direct OEM steel replacement rotors for Dodge Viper ACR with Carbon Ceramic Matrix brakes.
  • Front 15.4" and rear 14.2"
  • Works with OEM front Viper ACR calipers with CCM, no modifications required.
  • Anodized billet aluminum hat with float control/anti-rattle clips
  • Rotor rings can be replaced easily.


  • Dodge SRT Viper 8.4L 2016-2017 with the CCM brake package, or and 2013-2017 Dodge Viper with CCM brake package
  • Special order Item drop ships direct from manufacture so please allow an additional 2-7 days for shipping.

  • Returns on special orders are subject to a 20% restocking fee.

Girodisc Rotor Construction

The primary purpose of the Girodisc system is to reduce unsprung and overall vehicle weight. The secondary purpose is to increase the ventilation and cooling capacity of the brake disc while retaining it's original dimensions. This is accomplished by using two-piece disc construction.

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 8 or 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 grade 12 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.