This Marathon Tires Pneumatic Tire is the perfect replacement or upgrade for existing carts, building new carts or for a variety of other applications. Hub Width in. 3.3, Bearings Included Yes, Outside Diameter in. 24, Tread Type Aggressive, Bore Diameter in. 3/4, Rim Type Steel spoke, Tire Type Pneumatic, Load Capacity lbs. 250, Tire Size in. 24 x 2.125.