Heavy Ornamental Wheel has 12 spokes, is 1 1/4" wide, has a 4 1/2" diameter hub that is 4" wide, with a 1" bore. Hub is made of cast Aluminum. It is recommended to use a brass bushing on the axle opening (hub is made of cast aluminum) for light duty. These wheels do not have weight specifications. The Heavy Ornamental Wheel is much heavier than the Economy Wheel. The Wheel is made well..