EBC Racing 05-11 Ford Focus ST (Mk2) Front Left Apollo-4 Blue Caliper

Apollo brake calipers utilize a 2-piece bolted design, incorporating high tensile 12.9 grade steel bolts for reinforcement of the caliper bridge section. Computer FEA analysis shows that the utilization of high-tensile steel bolts to reinforce the bridge brings significant improvements in caliper stiffness compared to a mono-block design. A stiffer bridge section means less elongation during brake apply, giving a firmer and more responsive pedal feel, especially after a period of harder braking where the aluminum bridge of a mono-block design caliper softens appreciably with increasing temperature. Unlike the vast majority of cast calipers, which are typically gravity cast, Apollo Series caliper bodies are machined from heat-treated low-pressure castings.