SAME MOLDS AS THE X/LR, SO EXTERNALLY IS THE SAME TIRE. THE DIFFERENCE IS INTERNAL. CARLISLE EXTENDED ONE OF THE BELTS IN THE TIRES CONSTRUCTION ALL THE WAY DOWN TO THE BEAD. THIS MAKES THE TIRE MORE RIGID IN THE SIDEWALL AND GIVES IT MORE SIDEWALL PUNCTURE AND IMPACT RESISTANCE. GREAT ON UTILITY VEHICLES.
