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Product Categories - Brake Discs - Strap Drive


Strap Drive Discs
The strap drive system has been developed by AP Racing for both road and race applications.


Key points with strap drive discs

  • Compared with single piece discs the disc is de-coupled from the hub, this allows the disc to align itself perfectly within the caliper.
  • Pedal feel and brake response will improve as a result of improved disc alignment within the caliper.
  • Pedal fee will improve at elevated temperatures as the disc rotor is able to expand in a controlled manner with little influence from the disc mounting. This greatly reduces disc coning.
  • Controlled axial float of the disc rotor reduces brake "knock off" which may result in an inconsistent pedal feel.
  • No free moving parts which means that the wear problems usually associated with floating disc designs do not occur.
  • No free moving parts means that there are no clearances that can become clogged with debris and corrosion, which would prevent a conventional floating disc from operating correctly.
  • No free moving parts means no unwanted mechanical noises from the discs
  • Strap drives are successfully used in race applications.
  • Note: When replacing brake pads with strap drive discs fitted, do not push the pistons back into the caliper by use as a lever against the discs. If this is done then the disc straps may be distorted and this can cause disc runout, resulting in possible brake vibration.


    Strap drive replacement disc kits are available for the following models:

  • Audi RS4
  • Porsche 993/996
  • Mitsubishi Evo 7/8/9
  • Subaru Impreza/STi



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