28" Skinnie mini tire 49cc stocker did 31mph on the Tom Tom after brake in. Very slow set up Same bike 66/80 Air filter, Carb re-jetting, Intake porting, Head shaved, Exhaust porting, Pipe, Kings sprocket 31 tooth. Now I have broken three old school speedo's, like in the video I posted a couple days ago. So I took the old trusty Tom Tom for a ride. I had some questions about the speed of the ones I use. They were off around 6mph at top speed seem to be closer down around 30mph. Topping out I hit 50mph on Tom Tom, did this a few times and parked it, shew.