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Discussion Starter · #1 ·
Just bought a used 2008 XC90 V8 Sport (Passion red) that didn't come with the stock wheels. I'm looking at upgrading to 20", what would the correct fitment specs be for wheels and tires?

I'm looking at a 20x9 5x108 +38 offset with a 255/45/20 tire, but not 100% it'd all fit since stock rims seem to be 19x8 +49 offset.

Thanks!
 

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Just bought a used 2008 XC90 V8 Sport (Passion red) that didn't come with the stock wheels. I'm looking at upgrading to 20", what would the correct fitment specs be for wheels and tires?

I'm looking at a 20x9 5x108 +38 offset with a 255/45/20 tire, but not 100% it'd all fit since stock rims seem to be 19x8 +49 offset.

Thanks!
Use this tool for comparisons: http://www.rimsntires.com/specspro.jsp

What wheel do you have in mind? I am looking for a 20" wheel also.
 

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Discussion Starter · #3 · (Edited)
This doesn't seem right to me, the rim is 1" wider, but it only extends an extra .4"? Looks like the bead on the tire just mount in a different spot, so if the tire is the same width, in theory shouldn't it be 0" wider? I don't get where the .4" comes from.

http://www.rimsntires.com/specspro....=38&text1=Stock Vulcanis&text2=Verde Parallax

EDIT: the .4" is the difference in offset. This tool is a little silly, you can make the rim any width and the numbers don't change and the tire magically shrinks and grows to fit.
 
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