you ever drive 45mph across rough terrain? take a real close look at the design of that thing...45mph would be on blacktop with the wind at your back...considering the fact that you don't have a lot of driving experience on the road let alone off road...don't go over 20mph off road...save yourself some pain and money.
I have my learners, and i drive on the high way quite often. I mean 45 like on streets is possible right? Off road I wouldn't expect to go fast off road.
But is there anyway i could improve the engine? Maybe add more power? Like an engine swap or something later?