The difference between the Epic Speed and Epic Speed Max is club head size. The Epic speed is going to offer more compact of a club head, better for shaping the ball rather than the forgiving design that the Epic Max offers. , There is a huge difference between the Epic Speed and the Epic Speed Max. The Epic Speed is meant for lower handicappers who need lower spin and more consistency while the Epic Speed Max is meant for higher handicappers who need more forgiveness. , The Epic Speed is designed to fly a little lower and have less spin while the Epic Speed Max is designed to be more forgiving with a higher ball flight.