Mine have held up fine, but they are the Xtreme All Terrain Radial. I don't know how many miles they have- they were on the truck when I bought it 2 years ago. I have put on 20k and 3 of them are in ok shape. The 4th not so good- I had a bad hub bearing and that corner wore very fast. If I remember correctly, a couple people from the other site had 50K and up.