All tires come with ball bearings and white finished wheels. Tire is 15.5in. O.D. Rim Size in. 8, Outside Diameter in. 15.5, Bearings Included Yes, Tire Size 15.5 x 4.80/4.00-8in., Tread Type Ribbed, Tubeless Tire Yes, Rim Included Yes, Tire Type Pneumatic, Bore Diameter in. 3/4, Hub Width in. 6, Load Capacity lbs. 350.