Ken,
Their Carlise All Trail 23-8.5x12. We'll see if they plow good next week, assuming I get the tractor running tomorrow. I used them at Steve B's last year with chains in the mud and did we'll. I am looking to see how they do without chains in the lighter soil in IA. A couple others had them at Steve's last year and did pretty well. They are a common tire on the Gators and other utility vehicles around here. I was just looking for something different to try. I am going to be getting a set of 23-10.5 Ags for it shortly since I found a 12" plow this spring.