Apollo brake calipers utilise 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 utilisation 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 aluminium 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. Low pressure casting is a vastly more expensive production method than conventional gravity casting, but by forcing the aluminium alloy into the mould under pressure the consistency of the finished part is greatly improved. This gives EBC’s Apollo Series brake calipers a noticeable performance advantage over conventional gravity cast calipers, exhibiting higher overall strength and a comparable caliper body stiffness to forging. Unlike most painted calipers on the market, Apollo brake calipers are not painted using a powder coat finish. Powder coat cracks and discolours with exposure to high heat, meaning that powder coated calipers look great out the box, but the colour quickly fades away in use. We don’t just want Apollo calipers to look good in the box, we want them to look great for years to come, that’s why EBC finish every caliper using our advanced high-temperature Teflon™ polyester coating process. This top-coat paint system is similar to what’s used in the cookware market on the underside of pans and it gives a durable, fade resistant coating that’s easy to wipe clean and ensures that Apollo calipers will look great for years to come.