First off let me just say, this bikes rocks. I have never owned a real race bike. I went from a Yahama RT 180, to a 06 DRZ 400. I got into looking for a MX bike and from my experience with the DRZ, I thought a zuke would be a good choice. I picked up an 07 450, its in great shape and runs great. Starts up with a couple kicks. I managed to get the bike for $2700. He was initially asking $4400 and kept reducing price until I found it for $3400 and still managed to get him down. I found out later the bike was factory ridden in supermoto and have pictures of my bike with all the SM crap on it. The guy I bought it from got it from this pro racer but supposedly didn't know he raced and thought he just rode it around his fields, etc.. So my question is, what should I look out for? Any redflags? Is there anything I should do with the bike? I haven't touched the bike yet maintenance wise, and am going to do the oil, filters, and all that stuff shortly. Once again, I am not familiar with mx bikes as this is my first one and am not accustomed to checking valves, etc... which I am going to have to learn to do. This was just one of those deals I couldn't pass up. (Im in ON) Thanks guys.