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Pad Bedding

To ensure the best performance from your new brake pads please take the time to read and follow these simple procedures:

Disc and caliper preparation

  • For best results, when fitting new pads prepare the disc rotors by cleaning any existing deposition from previous pads off the disc surface.  This ideally is done by glass beading or using a bespoke device such as a rotor-hone on the swept area.  As a minimum the discs should be cleaned with abrasive paper.  This is particularly important if you are switching from a sintered metal pad as the copper deposition layer burnished into the surface of the rotor can be a barrier to allowing a carbon/metallic pad from bedding-in properly.  To remove the loosened deposits, cleaning with acetone or alcohol on a clean cloth is then recommended.  Do not use an aerosol brake cleaner as many leave a residue that promotes brake pad glazing.  Take this opportunity to check for fluid leaks.  For best performance, we recommend changing your brake fluid regularly with a premium fluid (regular changing is particularly important in humid climates).
  • Correct centering of the caliper on the rotor is very important, even in opposed piston calipers (where there are live pistons on both sides of the blade to "self-centre" themselves). 
  • Heavy braking should be avoided until the new linings are fully bedded across the entire mating surface.  A visual inspection may be required.  Scored discs will require substantially greater bed-in time, reduce overall stopping power and are potentially dangerous. We recommend replacing badly scored or distorted rotors.

Bedding (Burnish)

  • Initially, the brakes should be used lightly (roughly 60-70% of normal lever pressures) but frequently. As you feel the brakes come in, follow this with progressively harder braking to maximum pressure with momentary cool-down between applications.  The goal here is to donate an even transfer film layer from the new friction material to the operating surface of the rotor.  This takes possibly twenty applications with an organic pad, somewhat less with a sintered compound. The aim of the bedding is to get the pads up to and even above service temperatures (pads smoking is OK) but NOT TOO QUICKLY OR GLAZING MAY OCCUR.  After bedding, allow the system to cool to ambient temperature before going out again.
  • If a fall-off in performance is experienced due to heavy braking prior to the new pads being fully bed-in, it is important to allow the brakes to cool down before continuing.  A “glazed” surface condition can usually be easily remedied by an abrasive cleaning of the disc surface (rotor hone, bead, abrasive paper etc).  For the pads themselves, remove the glazed surface of the pads’ friction face, reinstall and repeat the bed-in procedure.

Safety Recommendations

Although all Ferodo Racing friction formulations are asbestos-free, it is prudent and recommended to take adequate precautions while working with any friction materials.  The following may be regarded as best practice:

  • Operate in a well-ventilated area and avoid creating dust
  • Machining (not required in proper application) should only be carried out using approved dust extraction equipment
  • When fitting brake components, use appropriate dust extraction equipment or a damp cloth to remove dust
  • Do not use an air hose or brush to remove dust
  • Dampen dust, place it in a properly closed receptacle and dispose of safely