Originally Posted by chuck911

That's because paint is translucent, light goes through the paint all the way to the base or primer and reflects back out. It takes very little silver paint to cover what are basically silver wheels. Covering a different color takes a lot more paint. Otherwise the base silver would affect the look of the new color. Your question though was about weight. It only takes an ounce or two to do a wheel. The difference between the different wheel options is pounds, not ounces. The Carrera S wheel is I think about 3 lbs lighter than the Sport Techno.