Wheel dated. The rim is the "outer edge of a wheel, holding the tire." It makes up the outer circular design of the wheel on which the inside edge of the tire is mounted on vehicles such as automobiles. For example, on a bicycle wheel the rim is a large hoop attached to the outer ends of the spokes of the wheel that holds the tire and tube. In the 1st millennium BCE an iron rim was introduced around the wooden wheels of chariots. The hub is the center of the wheel, and typically houses a bearing, and is where the
Hubcap which covers the entire wheel. Nave plates were used in the 1920s and 1930s to cover wire wheels (which are lighter and truer running than more conventional pressed steel wheels) to make them appear modern and streamlined, and to make it easier to keep them clean. Hubcap A hubcap, wheel cover or wheel trim is a decorative disk on an automobile wheel that covers at least a central portion of the wheel, called the hub. An automobile hubcap is used to cover the wheel hub and the wheel fasteners to reduce the accumulation of dirt and moisture. It also has