【13x5.00-6” TIRES AND WHEELS】Tire Diameter 13"; Tire Width: 4.5"; Bushing Hole Diameter: 3/4"; Centered Hub Length: 3" -3.25" -3.5" -4" -4.5"; Dynamic Load Capacity: 300 LBS. Please check the tire on the existing sidewall and measure the hub and bearing sizes to ensure proper replacement,【EXTRA ADAPTER KIT】The 13x5.00-6 solid tire is a pre-assembled 3" centered hub and 3/4" bore bushing. Considering that the wheel and bushing sizes of different, we also come with four 5/8" bore bushings, four 1/4" and four 1/2" wide wheel nylon spacers, and four steel spacers, making it easy to adjust to various hub sizes,【HIGHLY ELASTIC RUBBER TIRES】The outer tire is made of an upgraded material with a higher rubber content, so a layer of fine hairs forms on the surface of the tire. This tire can withstand even the toughest driving conditions and provide reliable performance for years to come,【ONE-PIECE WELDED RIM】These tires and wheels are equipped with DOUBLE-SEALED CARBON STEEL BEARINGS to provide flexible rotation and load balancing. And high-strength ONE-PIECE WELDED RIM to make sure it does not bend or fall apart with the hub when loading large capacity