Irrigation Tire

A tire for use with a wheel to support agricultural irrigation equipment on a surface, the tire comprising:

• an axis;
• a tire outside diameter of at least 40 inches and a tire axial width of at least 10 inches;
• first and second sidewalls positioned substantially perpendicular to the axis;
• a top layer circumferentially positioned around the axis and connecting the first and second sidewalls, the top layer including a non-directional tread pattern, the tread pattern including:
• a circumferential lug positioned between the first and second sidewalls;
• a plurality of equally circumferentially spaced longitudinal lugs positioned substantially parallel with the axis, the longitudinal lugs being arranged in a first row extending from the first sidewall and a second row extending from the second sidewall, the longitudinal lugs including a lug contact surface, lug sides and a substantially spade-shaped terminal end terminating within the circumferential lug, each terminal end of each longitudinal lug of the first row extending past the terminal end of longitudinal lugs of the second row, each terminal end of each longitudinal lug of the first row being equally circumferentially spaced from adjacent terminal ends of longitudinal lugs of the second row, each longitudinal lug of the first row spaced from adjacent longitudinal lugs of the first row to define an inner tread, each longitudinal lug of the second row positioned opposite the location of an inner tread of the first row;
• and
• the circumferential lug positioned to space the terminal end of each longitudinal lug radially away from the axis;
• the top layer and sidewalls defining an internal chamber when positioned on the wheel, the internal chamber shaped to hold a gas;
• and
• the tire being comprised of rubber and an anti-weathering agent wherein the anti-weathering agent includes a concentration of at least 8 parts per hundred parts of the rubber.