As I've said before, a couple of years ago my record was 13 flats in one year, on two tractors ... all in the front. That was preSlime. Since then, I've not had one on a treated tire ... touch wood fast. But, as far as your theory goes, I have had flats on the back too, only 3, I think. They are a booger though as there is nobody around here that will come out to fix them anymore because of liability issues. It's up to you to get it off, get it in, get it fixed, get it reinstalled. Oh, I hate a flat on the rear!!!!!!!! /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif