Yeah for the amont of races i plan to do i really dont see needing a yfz450. After i redo all the suspension im sure itll help alot. Also a hydraulic clutch, steering stabalizer, and some work to make the throttle easier to push. I think with those mods itll cut down on fatigue and allow me to keep pace with the 450s. well now all i have to do is get endless amounts of money wish me luck