A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

What tire size option do I have on my 18's???

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Old 03-13-2007, 03:10 PM
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Default What tire size option do I have on my 18's???

I have some Kahn RSR wheels to put on my A4 and I believe that the correct tire size should be 235-40-18.

What would happen if I was to get tires that were a different width such as a 225-40-18 or 245-40-18

Or tires with a different height like 235-60-18???

<img src="http://www.kahnstore.com/images/RSR.jpg">
Old 03-13-2007, 03:24 PM
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Default http://www.sccoa.com/faq/tirecalc.html <-- do the math

<ul><li><a href="http://www.sccoa.com/faq/tirecalc.html">http://www.sccoa.com/faq/tirecalc.html</a</li></ul>
Old 03-13-2007, 04:08 PM
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Just go with 235/40/18 and call it a day.
Old 03-13-2007, 06:03 PM
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Ditto. 245/40 if he absolutely wants to have a wider tread contact patch.
Old 03-13-2007, 07:12 PM
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2nd.
Old 03-14-2007, 06:33 AM
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Default I had 225/40/18 on my 18's last year (b/c they came with it)...

It drives fine, but there is no sidewall protection of the lip of the wheel. My next set will be 235/40, once I figure out what tire to get. People run 245/40, to be honest idk a lot about them vs 235, but people do do it. I would just get 235/40 and be done with it
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