Rim Optimus "20 Alloy Double Wall Aero

The basic function of your wheel rims is to provide leverage as well as a solid base to mount your tires. A good rim makes a difference in friction reduction and handling as well as gas mileage. And of course, tires provide cushioning, noise reduction, and better handling than just riding on the rims alone.

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.