First weekend they were installed, had 4-10 of snow and had to climb a hill that has a nursing home, tops out at 6000 ft. Although it was paved it wasn't plowed. Tires performed perfect in 4 High, there was an inch of ice covered with ten inches of snow. Tires didn't slip or slide and the buggy felt rock solid. I've had Kumho's before on 2 other vehicles and have always been impressed with how little wheel weight they need when balancing. That to me is a sign of good consistent quality which will translate to long lasting tread wear. I definetly recommend these tires.