[hevenz]

Wanting to get some ATS wheels... They have 18 x 9's on the back and 18x8's up front I believe.... Its hard to find anybody selling more then one on eBay... Came across 4 (4706) which are the rears...this shouldn't matter on a 05 CTS should it?? Would i mount 245/40/ 18s?? Never bought wheels so any help would be appreciated

 

[kaitagun]

fe1
I have 20x9 all around with offset 38+ tire size 245/35/20 without problem.You should be fine if the offset is between 38-42 and I would go with 245/45/18. check this thread.
http://www.cadillacforums.com/forum...-forum-2003/253575-245-45-18-245-40-18-a.html

 

[hevenz]

I'm sorry if I'm not getting it... Based on this tire calculator it says I should go with 40 18?? Because the diameter of the 45 is greater then 3 % ? I'd like my speedo to be accurate as possible... (Can't post my screen cap but its the same as the pic in the link u posted)

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Why would you go with the 45 over the 40?? Thanks again for ur help!

 

[hevenz]

Tire chartchart... The 18x9 ATS wheel won't be an issue?? It is a 42 mm offset