I'm running 32-11.50-15 pro-comp at's, I have about 8000 miles on them so far and they still look brand new, they handle great on the road, I've ran them in the rocks, dunes and in snow with 10 psi and they perform very well, there only down fall is in the sticky clay, the tread fills up fast, but if you get enough wheel spin they do clean out well, and they have a 50,000 mile tread wear warranty.