Hey everyone, I know most of you are into road cycling but I don't know where else to turn to for info, and i'm sure you're all very knowledgeable. Anyways, i'm 14 years old and race BMX ( bicycle moto cross ) a lot of you are probably familiar with this. Each race only lasts about 30 - 45 seconds, because it's just an all out sprint over different obstacles. I was wondering what your advice on training for this might be? I know of course there is doing sprints in the street on my bike, which I do but I want something that will really give me some good results and build up my quads and loose some weight? I'm probably 10-15 pounds from where i'd like to be. Also any diet info would be appreciated too. Thanks for any help.