The USR or Ultimax slotted rotor range are our premium silent premium street range designed for fast street use and is made using the highest quality G3000 grey iron rotor blanks.

Statement of Origin – EBC Brakes manufacture 92% of everything it sells in its own plants in the UK or USA, that’s pretty good for a brake brand, probably the largest in the world. Rather than focus on where that last 8% of bought in components come from we focus on the QUALITY of everything we buy in. EBC is in CONTROL of these bought-in components through  R90 and ISO accreditations. But we don’t leave it at that. Every factory we outsource from is visited regularly and systems checked. Every component we receive is batch checked for metallurgy, accuracy, X-Ray inspected, balance and dimensional checks etc. During 2021/22 EBC Brakes has spent tens of thousands of pounds testing its entire disc range to the new R90 regulations which test to match or beat OE and we have PASSED every test for R90.

About Slotted Rotors

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.

Ultra Quiet 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!).

Why Slotted? The Benefit!

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.