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Rim size Q: 245/45-17 or 245/40-18

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Old 03-25-2015, 01:40 PM
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Default Rim size Q: 245/45-17 or 245/40-18

The vehicle is a 2009 Audi TT 3.2 Quattro Coupé that originated in the US and now is with me in Canada, eh?

It has run-flat snows on it currently that are: 245 45R 18 [100V] from Dunlop.

I'm looking for new summer wheels and tires, and there seems to be a discrepancy in the sizing (the two sizes in the title of this thread are what come up in website search fields).

Just to mess with the mix, I want rims made in North America, and tires not made in Asia...yikes, am I asking too much? Oh, and run-flats too!

Would the two rim sizes 245/45-17 or 245/40-18 also fit my TT?
Old 03-26-2015, 07:35 AM
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Yes, the correct sizing to use on the 2009 Audi TT 3.2 Quattro Coupe in 17" is 245/45R17 and in 18" is 245/40R18. 245/45R18 is about one inch taller than the stock size.

I know of no wheel foundries left in North America.
Old 03-26-2015, 08:14 AM
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Well, I think these folks make wheels on this side of the planet: http://www.fastwheels.ca/en/about-us
Old 03-27-2015, 07:03 AM
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Originally Posted by Knoodle
Well, I think these folks make wheels on this side of the planet: http://www.fastwheels.ca/en/about-us
What leads to you believe that they make their wheels in North America?
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