this website tells me what the different in aerodynamics of a dirt bike to a car it also tells me the different of gas mileage between a 2 stroke motor and a 4 stroke motor. this will help me by telling me how aerodynamics relate to math.Well it says the 2 stroke dirt bike and a four stroke dirt bike does not really rely on aerodynamics it relies on the power of the motor because two stroke dirt bikes are basically meant to rev really high and four stroke dirt bikes are meant to rev really low and two strokes are also racing motors meant to go on high speeds which four strokes are not, so if there the same cc the 2 stroke will always win.