I'm not arguing or disagreeing, because I don't even understand this stuff at a distance, but I am curious; why should this be true? How does hitting a pothole "unbalance" a tire? You balance a tire/wheel because all sections or segments of the tire/wheel don't weigh the same. You add weight to one section to attempt to "balance" these inequalities. I understand that tires wear unevenly and this weight distribution changes over time, but don't understand how hitting a pothole would change a tire/wheel weight distribution.[/QUOTE] I'm not a tire engineer, but I can tell you that even on a car tire, it can be balanced to zero, driven into a curb, or driven a couple hundred miles, and be way out again. I have seen it time and time again.