Odd Tire size help!

[Ti Kan]

Richard Hoffman writes:
> I am in need of new tires for my 1970 100LS - the tires on it are not
> particularly worn but they are badly, badly cracked and I don't really feel
> safe riding on them!
> The problem is finding them in the right size!  These are 165R14 tires and I
> am really having trouble coming up with anything at all in this size.  The
> car only has 100hp and I don't need anything fancy, just something
> all-season. I doubt the car will ever see snow.

The 165R14 is equivalent to today's 165/80R14 size spec.  Plugging that
into the trusty tire size calculator program gives the following close
matches based on maintaining speedometer accuracy:

Specification  Sidewall  Radius  Diameter  Circumference  Revs/Mile  Difference
165/80-14         5.2in  12.2in    24.4in         76.6in        827        0.0%
175/75-14         5.2in  12.2in    24.3in         76.4in        829       -0.2%
185/70-14         5.1in  12.1in    24.2in         76.0in        834       -0.8%
205/65-14         5.2in  12.2in    24.5in         76.9in        823        0.4%
215/60-14         5.1in  12.1in    24.2in         75.9in        835       -1.0%

Of course whether your wheel width would support the wider sizes is
in question and whether they actually fit without rubbing something.
But these are some sizes to work from.  HTH.

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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