"Dan Koren" > wrote in message
...
> "Ronny" > wrote in message
> ...
> >
> > 16" wheels on the Audi may have a "J" of say 7 or
> > 7.5 it all depends on the width of the wheel itself,
>
>
> Standard A4 rims are 7.5"@16", 8"@17", and 8.5"@18".
>
>
> > I would say 225's will go on a 16" rim, but its
> > impossible to tell.
>
>
> If the rims are 7.5" wide, the fit is marginal for
> 225 tyres, and the combination is definitely not
> recommended. If you want 225/50 tyres, you should
> put them on rims that are at least 8" wide.
>
>
> > if the wheel is too narrow ie 6.5/7J what happens
> > is the sidewall of tyre hangs over the edge of the
> > rim a bit like a tyre which has sidewall protectors.
>
>
> Bingo!
>
> That would require the tyres to be overinflated
> just to prevent them from galling off the rims.
^^^^^^^
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dk