i have a 2000 ds 650 my friends have a honda 450r, yfz 450, a suzuki 450 what do i have to do to comptete with them?? my bike is pretty much stock except for being piped and jetted.

 

Well alot depends on what they have done. But put a 15 tooth front sprocket on and that will help alot. By the way what are you tryin to compete in? Drag racin, hill climbin, mx or what. It also depends on weight. more info please. russ

 

Well pretty much drag racing, they all have been piped and jetted and thats it.