I used to have a set, so did a friend. We lived in the same area where the largest potholes and the worst patches in Virginia reside. From my experience they were pretty damn strong. After a over a year they were still as good as new. I personally don't know of anybody that has had problems with them other then curb rash and they were at fault. But that doesn't mean there hasn't been problems so don't label me bias or anything.