Tires may seem like a boring necessity that you need to keep your car, truck, or motorcycle on the road.  If you delve into automotive history, you'll find some interesting facts about those rubber wheels. Early cars used “artillery wheels” that had the tire bolted to the wheel. Have fun changing that flat. For the first 25 years of the car, all tires were white. Zinc oxide was added to the rubber for strength, but had a side effect of making bright white tires. By the second decade of th [...more]