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Komatsu Loader Differential in North Dakota - Are you struggling to find the very best Our highly trained North Dakota staff of parts professionals are standing by to help you source the components you're after. The word "pneumatic" comes from the Greek word for "spirit" that is "pneuma" and means something that is filled with air. The majority of tires you utilize or see these days are more than likely pneumatic tires. In fact, nearly all modern commercial transportation and private transportation could not work without pneumatic tires. Webster's on-line dictionary defines pneumatic tires as tires that are made from reinforced rubber and could hold compressed air. Any tire which requires air pressure to hold its form is considered to be a pneumatic tire. John Boyd Dunlop, the Irish surgeon has been credited to inventing the pneumatic tire. He developed the very first practical pneumatic bicycle tire in 1888. During the year 1895, the Michelin brothers Édouard and André, the Michelin brothers were the first to utilize pneumatic tires on a car during a race. Pneumatic tires are made from many bands of plys or corded fabric. Plys are often coated with rubber which allows them to hold air pressure. Bias ply tires have the plys overlaid at a certain angle to the other layers. Radial tires have all plys laid at ninety degrees to the casing or tire body. Tube tires are a type of tire that needs a rubber inner tube so as to hold the air pressure. Motorcycle tires on spoke rims, bicycle tires and older bias ply truck and car tires utilize inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall that forms an airtight seal with the wheel. This type of tire does not need an inner tube.