In a new super quiet slot design, the USR rotors are all black anodized and feature slots for cooler brakes and also offer the extra benefit of preventing the "record groove" scoring effect common with all plain rotors. The new quieter USR design is preferred by prestige car drivers where reduced air noise under braking is required.
Slotted rotors can significantly improve brake performance and longevity when used with a matching high friction pad set . Having sold hundreds of thousands of brake kits, EBC Brakes feel confident their approach is as good 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. 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 brake pads 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 braking. 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 while still offering pad degassing and removing dirt, dust, water, and debris from the braking area.
Important Guidelines for Changing Brake Pads and Rotors
Always replace brake pads when replacing rotors. It is false economy to use worn or old pads on new rotors as they can cause hot spots and promote brake fade and more than double bed in time. Doing so is both dangerous and bad economics.