These were substandard and I sent them back. Simple Tire was very helpful. I purchased Michelin tires instead and they are exceptional. This is what Firestone says about the Evo tires: " Not every tractor works 5,000 acres of row crops or has to withstand miles of chopped corn stalks. But every tractor deserves a Firestone. Performer EVO was designed specifically for your secondary tractor, and for the everyday jobs that make the big ones possible: hauling hay, picking rocks, spreading manure." They describe them as a second rate tire and they are. I would recommend that you avoid them.