[s-cars] what is the optimum tire size for 17x8 wheel

[Lee Levitt]

Dave,

I ran Toyo Ts-1 255/40 17s on my S6 avant (Eibach/Bilsteins) and 
had no fender flare interference. I did have the fender *liner* 
interference on hard compression and reversing, but that was 
little more than an annoyance. No tire or fender damage.

Loved those tires!

What have you heard about the T1-R? I'm looking to upgrade from my 
Toyo Proxes 4s on my '02, and I'd like to go back to the summer 
format...probably in a 255 if they'll fit.

My Proxes 4s, in a 235/45 17" size will go on a set of OZ Novas on 
our '96 A6...again if they'll fit. That car would not take a 
245/45 16" tire. Zero clearance up front.

Lee
'02 A6 3.0 quattro avant
'96 A6 quattro avant

On Tue Apr 12 11:44:35 PDT 2005, Dave Ellis <UrS4 at sympatico.ca> 
wrote:

> 
> Hmmm... I too am trying to decide between 245/40-17 and 255/40-17 
> tires. I was leaning towards a 255 tire until I checked the data 
> sheets and found that both of the tires I'm considering (Dunlop 
> SP8000 or Toyo T1-R) both list 8.5" as the minimum mounting width 
> for their 255/40-17 tires.  Also, in a recent thread on Audiworld 
> discussing tire widths a couple of posters described light 
> rubbing with the car loaded down or when reversing when using a 
> 255 tire (I'm guessing wheel offset will play a large roll here).
> 
> For the roads I have to drive on I have decided to go no larger 
> than a 17" wheel, but finding a 17x8.5 wheel is next to 
> impossible unless you have deep pockets for something _nice_ like 
> BBS or such.  So it looks like for now I'll have to settle for a 
> 17x8 wheel.
> 
> While I would prefer to have a 255 tire, I don't want _any_ 
> rubbing issues or to have to roll the fender lip or such.  I also 
> don't want to risk compromising the mounting of the tire or the 
> sidewall integrity by mounting a tire on a narrower wheel than is 
> required.
> 
> What experiences have fellow S-car listers had with    -a 255 
> width tires on an 8" wide wheel?     -rubbing or contact issues 
> with a 255 tire?
>    -if you do/don't have rubbing with a 255 tire, what
>     is the offset of your wheels?
> 
> I'm running Eibach Pro springs with Boge TurboGas dampers if 
> that's any help.
> 
> By the way, the best tire calculator and offset calculation web 
> pages I've found to date are as follows:
> 
>   http://gs.tolan-hoechst.com/tirecalc.htm
>   http://www.miata.net/garage/tirecalc.html
>   http://toy4two.home.mindspring.com/offset.html
> 
> -Dave
> Ottawa, Canada
> '93 S4
> '99.5 A4 1.8t
> 
> 
> 
> On April 12, 2005 13:54, CaptMagu at aol.com wrote:
>> s-heads
>> 
>> Actually, 255/40-17, is the closest to the diameter of the stock
>> 225/50-16. This size is also the stock size with the C5 A6 when 
>> you
>> order 17x8 wheels and tires from the factory. I used to run
>> 245/40-17s on 17x8 rims for summer but have recently switched to
>> 18x8.5s. I still run 255/40-17 Victoracers for the track with SSR
>> Comp 17x8.5s. As another data point, the actual width of 245, 
>> 255 or
>> whatever size tire varies greatly from one manufacturer to 
>> another.
>> Several years ago I mounted a set of Yokohama ES100s in 
>> 255/40-17 on
>> my wife's A6 4.2. They were 30mm wider than my 245/40-17 Toyo 
>> T1Ss.
>> HTH
>> 
>> Hap, wit dakine tire info from Evahboost, Maguire
> 
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