[tentcamper]

I'm not sure you can conclude it was the wheel size that made the difference. One of the articles I read by a tire experts that is a professional witness. It indicates goodyear changed the thickness of the rubber between the belts or maybe it was between the belts and tread, and that was the cause of the de-lamination problem. Goodyear will not confirm that being the issue or that they had an issue. But they confirmed they change the specification and have gone to a thicker rubber between the layers.

Not sure I have the dates even close, but it seems everyone was having issues with tires made for about 4-5 years. Somewhere in the mid/late 2000's to around 2011 or so. I think Goodyear is past the issue.

So was it 15" tires, different tire manufacture, or the changes that goodyear made.