The KDX is more than capable for local events. The rider's ability is at least 50% of the equation. I've seen good riders on XR100's smoke poor riders on new 125 MXers. It is technique over mechanics. If you are trying to compete in the 250A class, you may wish for a different steed. But if you have been on the track and doing the jumps, you should know what you're capablities. Your experience, cunning and treachery makes up for a lot of the youthful strenght and enthusiasm. Go get 'em.