The first number is the width of the tire in millimeters, measured from
sidewall to sidewall.

The second number is the aspect ratio. This is a ratio of sidewall height to
width. On a 205-75R14 the tire is 205mm wide, multiply that by the aspect
ratio of 75% to find the height of one sidewall 205mmx0.75=154mm (=6"). On a
205-70R14 it's 205mmx0.70=144m (=5.6").

 Joachim
 '85 Westfalia

On Fri, 1 Nov 2002 13:06:18 -0600 John Rodgers <j_rodgers@CHARTER.NET> wrote:

> Katie, the Michelin 205-75R14 tire that Ken
> Lewis mention in his post is
> a good tire. I plan to put them on my van soon,
> as my 205-70R14 MXT's
> are just about gone.
>
> The one thing he didn't mention is that the
> 205-75R14, though a 14 in.
> tire, simply stands a bit taller. That is, the
> outside diameter of the
> tire is just a tiny bit ( I don't know how
> much) bigger that the
> 205-70R14. But that isn't anything to be
> concerned over.
>
> Good luck.
>
> John Rodgers
> 88 GL Driver
> Winding down on one of the last ever sets of
> Michelin 205-70R14 MXT's
>
> Heffelfinger wrote:
> > Vanagon insanity gets deeper with this
> development.  What the duck? I have called all
> over the universe and only found a few last
> stores of the 205s, everyone is encouraging me
> to go to 185s (which exist for the 14 rims) or
> to consider moving fd to a 15 inch rim where
> light truck tires abound.
> >
> > Right now I drive on the increadible unsafe
> mix of 2 bald 205s in the back, one
> cracked-and-wobbly-to-the-point-of-buffeting-
> at-25-50 mhp front passenger 205 and one NON
> reinforced standard car 205 tire. I've already
> blown out the other standard car tire, and
> hence my cracked and wobbly spare a-buffeting
> away. Look out I'm on the road! (It's a passive
> suicide attempt, apparently)
> >
> > Any leads on these tires?  I've found a cashe
> of Firestones using a construction tire
> connection for $75 (I'm getting 4 and sparing
> the 2 rear tires incase this happens again).  I
> have to drive to work 3 days/ week and I loathe
> doing it on this mix.  What have other people
> been doing when this happens to them?
> >
> > Sincerely
> > Katie H
> > heffel@enter.net
> >
> > driving Maroon June, the Flaming Death Trap
> > Carat 91
> >
>