motocross racing

I am sure you can get on Ebay, or maybe even Craigslist, and look for people who are selling motocross bikes or four-wheelers. I would definitely recommend you go to a local motocross shop and get properly fitted for all the protective gear such as helmets and chest protectors. I have a couple of friends who were successful at motocross racing, and one thing I learned from them was that protective equipment that does not fit properly is almost as dangerous as not wearing the equipment at all. I would also advise you to start out riding a little slower until you get used to the way your machine drives and handles in the turns or on the jumps. I have done some riding myself, and it is really fun, but it can also be VERY dangerous...good luck and be careful...