I am having a tough decision with this one. I current have a 2000 KDX 200. It's a great trail bike and I and pretty fast but the bike has limits. :nod: I have a pipe, jetted, usually mods. I am a little lower than 6 foot but still growing. I weigh about 160 w/gear and 16 years old. Id like to race HS not dead serious about it but you know, something to do and get excited about. I like going fast and all kinds of trail riding, perfebly single track, not super tight but not wide enough for quads. They just ruin the trails. :bang: I think I would have some trouble keeping the 125 on the pipe most of the time. But it puts me in a better class to race in. The 250 would be great for the woods but maybe a little bit more power than needed. but you can always have more power than what you need. :nod: ( i need help on this one). A 250 4stroke sounds great but they are all to much, I don't want to spend any more than 3000 on it. A 4stroke for that much would need a new top end, it wouldn't be in great shape. Please help me.