Arnold 20-Inch x 8-Inch Replacement Tractor Tire Fits tractors and zero-turn mowers For Ariens, Craftsman, Husqvarna, John Deere, Poulan, and Poulan Pro Rear wheel assembly made up of a rubber tire on a steel rim. 3/4" diameter hub with 3/32" keyway Load rating per wheel 600lbs with 3-1/2" hub length