hi i have cen mini madness, i just put a novak velocti 3.5 in it could anyone tell me the right gearing for it it just doesnt seem that much faster than the 19t motor it had in before. i cant change the spur on it which 78 in size. im using a 25 pinon on it the moment. what would be the wright size pinon to use for mid and top end performance?
thanks