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Re: let it snow!

Steve Sherman writes:
> As I recall 195-65-15 are the same diam as 205-60-15....so your tires
> are a bit small and your speedo should read a bit low.

When the tires are a little smaller the speedo would read a little
*higher*.  In order to maintain the same actual speed the tires
would have to spin a little faster.  In other words, to travel the
same distance the tires would have to rotate more times.

Specification  Sidewall  Radius  Diameter  Circumference  Revs/Mile  Difference
205/60-15         4.8in  12.3in    24.7in         77.6in        817        0.0%
195/60-15         4.6in  12.1in    24.2in         76.1in        833       -1.9%

96 A4 2.8 quattro
84 5000S 2.1 turbo
80 4000 2.0
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