All joking aside...got a Q

Assuming that your running a stock rear right now. Probably a 38, that would get you close to the stock speed. The bigger you go on the rear spocket, the lower your top speed will be.
 
do go any smaller you need an lonestar Honda/yamaha Hub. it will allow you to use honda sprockets and you can get down to like a 32.. what you want to do is just bite the bullet and buy a 14 tooth front. if thats not enough top speed then lower the rear.
 
do go any smaller you need an lonestar Honda/yamaha Hub. it will allow you to use honda sprockets and you can get down to like a 32.. what you want to do is just bite the bullet and buy a 14 tooth front. if thats not enough top speed then lower the rear.

ya I was thinking that, gonna have to get one, 12t sorta would seem a little ruff "stress" on the engine also to me
 
As a general rule of thumb adding one tooth to the front is about the same as removing three teeth from the rear and vice versa. If you want more speed either add to the front or take away from the rear. If you want more torque then do the opposite to either sprocket. Keep in mind that front sprockets are cheaper than rears too:D and dont get carried away either a 14t is the largest that will fit without some minor case mods. so if you don't feel the need to grind away at your case then stay away from the 15t.