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Komatsu Loader Differential in San Francisco - Are you searching for the perfect Our qualified San Francisco team of parts specialists are ready to help you receive the components you require. "Pneumatic" is a Greek term for "spirit". "Pneuma" translates to something which is filled with air. The majority of tires you use or see nowadays are more than likely pneumatic tires. Actually, the majority of private vehicles and modern commercial transportation could not work without utilizing pneumatic tires. Pneumatic tires as defined by Webster's online dictionary are described as tires which are constructed from reinforced rubber, that hold compressed air. Any tire which needs air pressure to hold its form is considered to be a pneumatic tire. The invention of the pneumatic tire has been credited to John Boyd Dunlop, an Irish surgeon, who in the year 1888 developed the first practical pneumatic bicycle tire. In 1895, the Michelin brothers Édouard and André, the Michelin brothers were the first ones to utilize pneumatic tires on a car during a race. Pneumatic tires are made up of bands of corded or plys fabric. These plys are coated with rubber so as to hold air pressure. Bias ply tires have the plys overlaid at a specific angle to the other layers. Radial tires have all plys laid at ninety degrees to the casing or tire body. In tube tires, there are a kind of rubber inner tube to hold the air pressure. bicycle tires, motorcycle tires on spoke rims and older bias ply truck and car tires utilize inner tubes. Tubeless tires have a stiff bead on the sidewall edges which forms an airtight seal with the wheel. This eliminates the need for an inner tube.