I am going out with my son to a motorcross track; however, I am middle age (180LB) and canĀ“t affort to get hurt (job). I was thinking of a 150 to have a good time since I was told it would take me as fast as I would want to go and also run the course without having to clear jumps. It would also be good in the woods. The salesmen is trying to steer me to the 230 but I wanted something with a small seat height. Does the 150 have plently of power? Thanks