EBC Premium Disc - EBC is proud to be one of the only companies selling a British manufactured brake disc programme. Our high quality grey iron includes copper to increase thermal conductivity and wear properties.

All EBC Premium Discs are cast to a material strength of 150 N/m2 with a tightly controlled surface hardness variation less than 20 HB and are precision CNC machined to a surface tolerance of less than 0.05 mm. That is TWO THOUSANDTHS of an inch. For this reason EBC recommends a maximum runout of fitted rotors of 0.1 mm or .004 inches (4 thousandths) TIR which means total indicator reading on a dial gauge. Runout figures above this will lead to vibration after 3000 to 4000 miles due to what we call disc thickness variation (wearing a thin spot on the high point of the rotor as it runs off-true) which is NOT a warranty condition.

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!).

Manufactured using premium disc blanks mentioned above, the unique wide aperture slots in the EBC sport rotor actually draw cool air under the pad during heavy braking and reduce brake temperatures whilst also helping remove dirt, dust and debris and gasses created by heavy braking from the pad contact area. They also improve braking in off road conditions of wet, mud or sand and as such are a great choice for 4x4 vehicles. Blind drilled holes eliminate the chance of rotor cracking which is common with “through drilled” or completely drilled vent holes.