In my own observed experience. A friend and I got tires about the same time. He bought Mastercraft from Summit and I got the Vitours from Performance Plus Tire online. his are already worn over half way and mine have over 3/4 tread. I don't keep spread sheets and scientific data analysis on the comparison, just what I see. He wishes he'd bought the Vitours now. What more do you want? A rubber sample?
