On Oct 16, 2011, at 6:19 PM, John Jensen wrote:

> That's closer to the speedometer indication.  How did you get that?

http://www.paspeedo.com/calculator.htm

> 
>> 
>>> So I
>>> guess my speed will show as 97.5 percent of my actual speed. So when my
>>> speedometer shows 65, I'm actually doing 67
>> The "calculator" I use says that at speedo-indicated 65MPH, you are actually
>> traveling at 65.8878146101903 using your "new" tire/wheel size.
>> 
>> bob
>> 
>> 
>