My truck is a driveway Queen, it gets about 10K miles per year. About the time the KO-2s came out, I up sized to a 315, 70 ,17. I have run KOs for many years and been happy getting about 40K from them first set I put 22k before replacing them. I was up set but purchased 3 new ones, rotated the spare out. I was at 28k and not going to get another 8k from them, I was disappointed to say the least. At EXPO WEST I complained to the BFG rep. there and was looking at other tire to purchase. BFG started out with a very soft rubber on the KO-2s that didn't wear well on E-rated tires so he says. He asked that I start a claim maybe BFG would do something. Two weeks ago I started the claim and received a 40% on the new set. The jury is still out, I thought I should point out good customers service when I get it. I did rebuild the front end when I was 10k into the first set, bushings dampener, tie rod, alinement, so some of the wear is on me. I only love a tire or a name brand that gets to where I want to go and home without issues. There are lots of good tires.