[Chilibit]

Four years. Mileage, my speedo is broken. I use a vibration monitor to measure running hours. Sorta diesel-like. But I have a fair notion. I am extrapolating from anecdotal information. When we boil away the chaff, the underlying message was simply that the durability of these tires is commensurate with the grip. And, I like the way they stop. In the autumn, I will know more.