My nephew has become quite a good motocross racer. His dad, my brother is his pit crew/wrench man taking care of the bike and rebuilding engines. I would like to help more by giving a hand helping with seting up and fine tuning the suspension for him. I have done some suspension tuning with my own sportbike but need to learn the specifics of motocross racing. Can anyone give me some information on where to get material to read, or video's to watch on this subject.