Im thinking about building one of these bad boys, but I have a few questions. being 200 lbs, will I be able to build a bike that can go 60 mph on moderately level terrain? Having a decent amount of technical expertise I dont mind having to do minor fabrication and the like to make things work. Im assuming if I want to go 60 and not wreck, I will need wider tires and a beefy suspension correct? How much torque do most of these kits produce? Will I be able to find one that can hold a wheelie if I manually jerk the bicycle in to one? How ideal are these kits for offroad usage? I would also like to use one of these as a semi dirtbike. I know its not going to really perform spectacularly, but at least being able to carry me through thick grasses, dirt, and rocks at a decent speed of 30-40 would be a plus. As Ive said Im quite new and have done some reading, but I dont want to get too far into this if my goals cannot be accomplished without exorbitant financial difficulty.