They do, the UAS Unlimited All Star's are filled with 4 stroke 4wheeler/dirt bike engines, in fact i'd say there is more 450 engines in UAS than anything.Sorry if this is a stupid question but
it seems like the 4 strokes found in dirt bikes have substantially more power than the ones used in most kart races. Karts and Dirt bikes seem to run the same 2 strokes, why don't people race high dirt bike 4 strokes?
Sorry if this is a stupid question but
it seems like the 4 strokes found in dirt bikes have substantially more power than the ones used in most kart races. Karts and Dirt bikes seem to run the same 2 strokes, why don't people race dirt bike 4 strokes?