This Marathon Tires Flat-Free Tire is the perfect replacement or upgrade for existing carts, building new carts or for a variety of other applications. Tire Type: Solid polyurethane, Rim Type: Steel spoke, Tire Size (in.): 20 x 1.75, Tread Type: Ribbed, Hub Width (in.): 3.25, Bore Diameter (in.): 3/4, Outside Diameter (in.): 20, Load Capacity (lbs.): 250, Bearings Included: Yes
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