hey how is it going. I have been searching for hours and cant find anything on being able to change gearbox ratios. It is a fz1 motor that i am putting into a custom frame and mixed suspension. I would like to be able to drop the gear box ratios so i dont have to run a 12 tooth front with a 55 rear and still only be able to get down to 40 mp in first gear. Any help would be much apreciated. Thanks alot.