We have all heard the sayings about the cavemen who invented the wheel so it's not a stretch to say that wheels are an invention going back millennia. However, they have undergone some changes over the years. No longer do we use chiseled stone or wooden hubs and spokes to create the required round shape. The process of making tires is also more complex. Instead of using just one material there are a variety of materials that are used to create strong efficient tires that will withstand thousands [...more]