My sons is 8 years old, he will be 9 in a few weeks. He would really like to get into some kind of racing on his mountain bike. Is there somewhere we can go to watch a race like this, or possibly get him in one? I looked around at a few sites, but I am not sure what I am looking for. He would be up for almost any kind of racing; ie. downhill, trail, or track I am sure. Any information would be appreciated.