I'm surprized to hear this, I've got about 600,000 miles on over the last 10 years between the Tundra's and T4R's. 75% KO's getting 60,000 per set, Bridgestone look and ride great, maxed out at 30,000, Cooper not even in the running. Goodyear did a great job with the Duratac and Michelin run for...