First quality, precision wheel rims CNC machined and polished from aircraft grade aluminum. Doesn't get any better. Design also features a slight boss on the ouside edge of the outer diameter for registering the face of the tire and to provide a more realistic appearance. The Sigma Racing series does not have the drill holes on the wheel flange for added durability and well suited to endurance racing. Price is for two wheel rims including set screws.

Outside Diameter: 20.5 mm Inside Diameter: 19.0 mm Rim Width: 16.0 mm Overall Width: 19.4 mm Axle Hole Diameter: 3.0 mm Screw Boss Diameter: 8.0 mm Screw Threading: M3 socket set screws included