I currently have an 04' KX250 that I've had for about a year (my first bike) and I just trail ride around the desert (sandy); but now I want to race but I herd that I won't learn some skills on a 250 that I would learn on a 125 class bike. but if I do get the 250F I will only race like two maybe three times a month so will I get bord with the power in the desert scince I'm used to the 250's power. so should i get a 450? or is that too much to handle on the track? or will I be just fine racing the KX250? two smoke thumper, does not matter to me I like them equal.