I have a question for all you math gurus out there. I have 25 inch tires(circumference is 78.5) on my EZGO and I have the stock rear end which is 3:875 ratio. What approx. MPH would I reach at 3000 rpm? And if I bought the HS gears which is a 3:105 ratio how much would it change my speed? I know the BU catalog says you get an approx. 6 MPH gain. But would it be different on my cart since I have bigger tires and engine? I could probably figure this one out myself if I had a year or so to think about it, so I was hoping that someone on here would know a few formulas for this crap.