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Old 07-03-09, 05:40 PM
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EChas3 EChas3 is offline
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Cadillac(s): 2006 STS4 V8 1SG & 2007 STS V8 1SE
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Join Date: Jun 2008
Location: Cedarburg, WI
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Re: What is largest tire size you have put on 07-09 STS?

^^^^^ Yep!

Quote:
Originally Posted by jimzilla View Post
Thank you Echas. To be clear about the 255/45-18s fitting your 06 STS, I assume you mean you have them on and have have driven around on them for some miles? Any problems at all? Do you drive in city? rural? potholes etc?Let me know when you get a chance. Thanks in advance.
The DPO & his dealer had rotated the P235/50R18 - P255/45R18 every 15,000 miles. When I got it, the tires were on the wrong ends with no adverse effects (other than the blushes from the selling dealer).

I do wonder how big one could go with the ZF Steering. It seems to have a quicker steering ratio but I don't know if the turning radius changes.