Raybestos® R-300™ Performance Rotors

More Braking Power, Improved Pedal Feel

Raybestos R-300™ performance rotors deliver everything serious drivers expect, including:

  • Improved pedal feel
  • Lasting rust prevention
  • Increased pad life
  • Responsive pads

Lessons learned for Raybestos racing rotors are translated into product improvements for:

  • Work trucks
  • Fleets
  • Family vehicles with towing capabilities
  • High-performance vehicles

Towing and high-performance vehicles who use R-300™ rotors experience stronger bite without sacrificing smooth braking.

Design and Material

Raybestos R-300™ rotors are designed with a patented S-Groove slot (D640,620), maximizing pad-to-rotor contact for:

  • Improved pedal feel
  • Stronger bite
  • Smoother braking
  • Increased pad life

R-300™ rotors are made with application-specific enhanced iron, which:

  • Suppresses noise
  • Keeps brakes running cool, quiet and vibration free

Cooling Vanes

The cooling vanes on our rotors match OE configurations, providing:

  • Optimal cooling
  • Reduced fade
  • Less noise
  • Increased pad life


The rotor hat is coated with a black onyx coating, improving appearance for a clean, finished look.

The rotor inboard surface and cooling vanes are coated with a Grey Fusion 4.0™ ​coating, helping to reduce rust for optimal:

  • Airflow
  • Cooling
  • Aesthetics

SAE Standard for Tensile Strength

Our rotors meet the SAE standard for tensile strength, guaranteeing structural integrity and maximum service life.

Turned Finish

A turned finish minimizes noise and improves responsiveness for smoother stops.

Lateral Runout & Thickness Variation

Our R-300™ rotors come with a lateral runout of 0.002″ or less and a thickness variation of less than 0.0004”, ensuring:

  • Less pedal pulsation
  • Less brake noise
  • An extended pad life

Mill Balanced

Our R-300™ rotors are mill balanced and 100 percent validated. This helps minimize the thickness variation on the rotor and leads to:

  • Proper balance
  • Minimized vibration