Widest tyre/tire for 1990 80Q?

Grant Lenahan glenahan at vfemail.net
Fri Aug 15 14:29:44 PDT 2008

I never tried to push the envelope back when I owned my 90q20v, but  
the stock size was 205/50-15 an d 195/60-14.  I know people  
successfully ran one size wider.  Keep in mind that the answer  
depends in part of the offset you can tolerate. I say tolerate, since  
every decrease in offset increases bump steer, tug, and scrub  
radius.  5-10 mm wont hurt much.

I guess I'd wonder why you want to go much wider.  The benefit is  
minimal, unless you need a wide track tire. But even then a wider  
tire will not have a stiff sidewall if pinched in.

On Aug 15, 2008, at 4:52 PM, elweasel at bellsouth.net wrote:

> Yes, I see your point. I could put a meter wide tyre on the audi  
> but it would be a museum piece. No I wish to drive the 80Q. So that  
> means the the tyre needs to clear the suspension and brakes. So I  
> asked again, What is the widest tyre you can fit on a 1990 80Q with  
> Speedline rims, size =15"and still run the car without hitting any  
> part of the car. And the same question on 14" rims.  For example I  
> own a 2006 VW Jetta  and the widest tyres that VW suggest is 235.  
> Some people have been anble to fit 245 but it rubs a little bit. I  
> thought it was a simple question but I guess it was a bit more  
> involved. Thank you for any good answer to my questions.
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