Old motorcycles and its accessories are collectibles. Gottlieb Daimler invented the first gas driven motorcycle in 1885. Here, the engine was attached to the wooden bike. Another collectible bike that is a prized possession is the famous Harley-Davidson Motorcycle. In 1903, Harley-Davidson Motor Company started Harley-Davidson Motorcycles. The motorcycles that were manufactured in the early twentieth century are very popular collectibles.