Not to start a fight, but I find the 50K MILE claim on rear tires to be simply hard to believe.
From experience and in the years we have owned this forum, we have never heard of such a thing. Now anything is possible but guys who 50K MILES seem to be ecstatic.
I have had past customers tell me about 15K or less.
Hey, it that did happen, you should have sent those old tires off for some testing.
Peace and Merry Christmas.