I'm 16, 6'1, and weigh 165. I have experience riding friends dirt bikes but I have never raced. I'm wanting to get my own bike and start practicing/racing. I will mostly be doing trail riding but i'm going to try to get on a track too. I don't have a job but i'm trying to get one, so I don't have much money right now. So, what would be the best bike for me to buy to start out on? Thanks!