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