The biggest problem is the tires at least that the issue I am having. I know that any stock mt rubber with internal foam donut tire wont last past 80mph. So basically thats your brick wall. The carbon fiber thread is glued on the outside of the tire and duct tape on the inside on the hpi phaltlines.Heres a pic: These are pics of OverevO's 91,2 mph brushless revo tires.
These are good for at least 90mph. At 100 they might explode because it hasnt been done yet.