USR Slotted Rotors
Choose from EBC plain non drilled rotors or sport rotors in two choices – wide aperture GD Sport Rotors series for cooler running or new super silent Ultimax USR slotted rotor series. All EBC rotors including USR Slotted Rotors are British made and are precision machined in the UK. Rotors are made from high quality grey iron to exacting standards and undergo extensive testing and rigorous quality control. Slotted rotors can significantly improve brake performance and longevity when used with a matching high friction brake pad set. Having sold hundreds of thousands of brake kits EBC Brakes feel confident their approach is as perfect as it gets.
We are of the opinion that slotted rotors have been “Over sold” by certain marketplace participants and our findings are that a slotted rotor will only give benefits if used with a pad that compensates for its reduced surface area.
New Black Thermic and NITROTHERM™ FINISH
EBC brakes now produces all of its GD series and USR discs with a new ,long lasting corrosion resistant finish. The coating is either the world famous thermic or for less popular smaller batch items we use the new NITROTHERM™process of anti corrosive paint applied using this revolutionary process that coats with warm Nitrogen producing a better finish. During 2014 the former GOLD series GD discs will be phased out.
All EBC sport rotors are final machined in the UK and many of the castings used in EBC rotors are also UK made. In manufacture the EBC rotors are 100% runout inspected to a maximum of 0.1 mm total indiocator reading or 0.004 inches and should be runout checked after install on your car. If your car develops brake vibration after 3000-4000 miles this will be due entirely to a runout issue which happens on one in seven road vehicles. Most OEM builders Pro Cut turn rotors from new at install to avoid this problem and EBC recommends highly the Pro Cut on car brake lathes at your disc install.
The benefits of degassing and promoting flat and smooth pad wear are a clear plus in favour of sport rotors but the trick is to opt for a matched set of brakes and not to just expect a slotted rotor to improve braking on its own. . When used with higher friction EBC Redstuff, Greenstuff or Yellowstuff brake pads these rotors will deliver better brakes.
The different slot pattern of the EBC USR Series has made this range a popular choice for drivers who desire improved sport braking with minimal air noise from the slots. The finer slot pattern is what makes these sport rotors more silent in operation whilst still offering pad degassing and removing dirt dust water and debris from the braking area.
Ultra quiet sport slotted brake rotors
Manufactured using premium disc blanks mentioned above, the narrower multi slot design of the Ultimax sport rotor and the progressive angle at which the slots are machined creates a quiet running sport rotor that still has benefits of removing gas, dirt, water and debris and maintaining parallel pad wear.
EBC have always been honest enough to say that the biggest advantage of slotted rotors is the fact that they promote flat and parallel pad wear rather than allowing ridges to develop on pads and rotors which is typical of “drilled only” sport rotors. By preventing these ridges brakes stay more consistent throughout pad and rotor wear life (simple physics!).