Stephen S.

What's the proper tire width for a 7.5" wheel? For a 8.5" wheel? I tried to get a feel from looking at packages in the Tire Rack, but it seemed to me that it varied a lot. For example, I see 17x7.5 packages with 205's, 215's,and 225's? I also see 17x8 packagesx with 225's, 235's, and 245's. Please include any limitations of a set up on the a4. Thanks...<p>Stephen

Todd W

<br>Not on an A4. That is a factory combo for the UrQ<p>I think the RS2 had 225's on 7" rims from the factory.<p>Good Luck

Mark Collett

From what I can tell, Tire Rack is using the recommended size for a particular wheel,<br>and then going up/down one size also. This is perfectly normal.<p>For example, from what I can tell, the recommended size for a 7.5" is a 215, but you<br>can jump up to a 225 or down to a 205, no big deal. <p>Also, a 205 tire only refers to a 205mm section width - this should NOT be equal to <br>the rim width when converted to inches. If you are really curious, I can look up the<br>exact recommendations and reply...<p>Mark Collett

Leo

I was told that the right size tire for a 17 by 7.5 is at 225/45/17.nt

DavidC

He looked it up a while ago and said the optimal size tire for a 17x8.5 rim is 225/45. Optimal for what I don't know but he said it was based on a couple of factors. From personal experience it is not optimal for curbs and potholes as the rims get scratched very easily.<br>

Rich Quinlan

17 x 8.5 running BFG Comp T/A 225/45's, and it looks GREAT.. But I think an 8" wheel would be better with any other 225, since the BFG's have a quite 'fat', rounded sidewall.. I'll let you all know once I get the new tires on..<p>Rich