Tire numbers (was: 17 inch tire size for A4 - advice summary)

[Peter Henriksen <peterhe@microsoft.com>]

The width of the tire in mm and the height as a percentage of the width,
e.g., the 225/40 tire would be 225mm wide and (225*.40) = 90mm tall.

- peter, peterhe@microsoft.com, issaquah, wa
  98 volvo v70 t5 - 5-speed
  94 acura legend gs - 6-speed...

- Original message -
Date: Fri, 27 Jun 1997 09:26:23 -0400
From: "Brian McCune" <bmccune@apk.net>
Subject: Re: 17 inch tire size for A4 - advice summary

Pardon my ignorance...

I know that the last number in the tire description is the width, but
what
are the first two?  (225/40)

Thanks