RAC brake discs consist of an extremely warp-resistant, hardened and tempered steel. A special surface grinding process prevents any vibration occurring and thus improves the alignment of the brake pads (tolerance less than 1/100 mm). The even build up and dissipation of heat allows constant pad pressure. The electroplated surface protects against corrosion and the specific mix of materials increases the durability by 30%. The laser technology used in manufacture makes possible a lightweight design with finely engineered contours. ABE approved.