[s-cars] wheel offset and tire width

[Robert Rossato]

The stock size was 225/50-16 on 8" or 7.5" width rims depending on which
wheels you had.  When you start lowering the aspect ratio, the stiffer
sidewall won't allow the tread to fill out as much on the same width
rim, so it will tend to be narrower.  

But the real problem, IMHO, is that you're running 18" rims.  If you're
going to stick with 18's, you definitely shouldn't be running 225/45
size tires.  You are over an inch taller in overall diameter than stock.
You will be rubbing all over the place on the front tires when turning,
and probably rubbing the rears during heavy suspension loading.

In order to get back to a stock diameter you will need to use 245/35 or
255/35 tires (don't know if they're common sizes or not).  Pretty short
sidewalls.  I would stay away from any pot holes with those.

BR


> -----Original Message-----
> From: s-car-list-bounces at audifans.com 
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of forrest bradshaw
> Sent: Friday, December 22, 2006 7:24 PM
> To: audifans
> Subject: [s-cars] wheel offset and tire width
> 
> 
> I have 18x8" inch wheels with an offset of 32, tires are 
> Falken Ziex  512 225-45-18.  these tires seem to narrow and 
> as if they are  stretched to fit the wheel, Discount Tire 
> actually refused to sell me a  wider tire stateing that 225 
> is Audi's recommended width an these were  in stock, i got had.
>   
>   there is a good amount of space between tire and 
> fender/wheel well when turning
>   
>   my question is could I run a 235-40 or 245 -40 tire  on a 
> ET32  wheel?  ET35 seems to be most populare and people are 
> running 255  on those.  I'm looking at a 3mm differance and a 
> 235 sounds to me  like it should fit, but I want to be sure 
> before buying tires.
>   
>   
>   thanks for help
>   Forrest
>   
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