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

Offset problem?

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Old Jul 21, 2004 | 01:35 PM
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Default Offset problem?

I posted a thread about my brother's cars two days ago here are the pics:

<img src="http://pictureposter.audiworld.com/63072/dsc03114.jpg">

<img src="http://pictureposter.audiworld.com/63072/dsc03113b.jpg"><ul><li><a href="https://forums.audiworld.com/a4gen2/msgs/650064.phtml">https://forums.audiworld.com/a4gen2/msgs/650064.phtml</a</li></ul>
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Old Jul 21, 2004 | 01:49 PM
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Hmm, overall diameter may be the problem. What size are the OEM tires (width/series/diameter)?
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Old Jul 21, 2004 | 02:09 PM
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Default Re: Hmm, overall diameter may be the problem. What size are the OEM tires (width/series/diameter)?

OEM ones are 225/45/16
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Old Jul 21, 2004 | 02:16 PM
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I forgot to ask: what size are the new tires?
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Old Jul 21, 2004 | 03:00 PM
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225/35/20
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Old Jul 21, 2004 | 03:59 PM
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Default Well, that's a BIG part of the problem (m)

The OEM tires are 24.0" in diameter.

The new tires are 26.2" in diameter.

That's a pretty significant difference. According to the Miata tire size calculator, his speedo will read 60mph when he's actually travelling at 65.6mph.

Guys here will put 19s on but they'll keep the overall tire diameter pretty close to stock. If your brother wanted tires/wheels close to stock diameter, 225/30/19s would work.

It's hard to tell by the photo, but the offset doesn't look bad. Am I right that it looks pretty flush w/ the fender? You don't want spacer to push the wheels past it (think ricer Civics--no offense to Civics).

Did your bro get the wheels off a big MB or something?<ul><li><a href="http://www.miata.net/garage/tirecalc.html">Here's the tire size calculator&gt;</a></li></ul>
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Old Jul 21, 2004 | 05:35 PM
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Default tire + size is completely wrong

if he's going to go +4 then he needs to maintain the original overall rolling diameter.

what boysan said.
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Old Jul 21, 2004 | 07:04 PM
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Default DOH!!!!

the best he can do with 20's is 225/30/20 (do they even make those?) but that's still 1.3" too much for the entire diameter and you'll still be 5.6% too slow.

He should have stuck with 19's and got 225/30/19, assuming them make them (still 1.4% too slow).
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Old Jul 22, 2004 | 06:50 AM
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So the rubbing is because of the 4 inch diamiter increase correct?
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Old Jul 22, 2004 | 06:52 AM
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yes sir.
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