Racing into the Future with Docol Tube R8 - Zach Guzman Sign up for our monthly newsletter below to stay up to date with articles like this one from A.E.D.! RELATED STORIES What is Docol Tube R8? Docol Tube R8 is an advanced high strength steel tube that are enginee... View Product Created with Sketch. Are you choosing the best type of steel tubing to build a racecar chassis with? Understanding the differences in the common steel tubes used in tube c... View Product Created with Sketch. Sprint Car Crash Test Several years ago, A.E.D., partnering with Spike Chassis and CAPE – Th... View Product Created with Sketch.