These Heavy Duty tires are one of the strongest tire we’ve ever built. Using 59 Duro material, these tires deliver superior puncture resistance, ride quality and long life. Ride through corn stalks, thorns, jagged rocks or whatever else comes your way with confidence. The triple nylon belting gives greater side wall protection because a tire is only as strong as its weakest point. If you need a tire that never lets up, look no further.