EBC’s 2-piece fully floating rotors have been tested to withstand hundreds of hours the harshest track driving. EBC’s 2-piece rotors offer a significant weight saving compared to similar sized brake rotors leads to improvements in acceleration, ‘dive’ under braking, and tyre road holding. All cast iron rings feature 48 curved vanes and are handed left and right, ensuring the vanes always rotate in the correct direction, giving maximum cooling efficiency. All outer friction rings are cast from a high-copper, high-carbon G3500 disc alloy giving them a high resistance to wear and cracking, even when used on track or for racing. The cast iron outer ring ‘floats’ on EBC's patented SD-Drive technology bobbins, allowing the friction ring to expand and contract freely by up to 3mm when subjected to the extreme heat generated from hard braking. The bells are precision machined from aerospace grade aluminum then hard anodised for great looks and excellent durability. All bobbins are machined from a single piece of stainless steel, preventing unsightly corrosion and ensuring the outer ring continues to float freely, even after years of exposure to road elements. EBC Racing's 2-piece floating discs offer a low maintenance solution that are at home on both the public roads and the race track. Each bobbin location also features an anti-rattle spring clip, meaning these discs are totally silent in operation.