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Komatsu Loader Differential in Connecticut - We offer overnight delivery on all parts and attachments for John Deere, Dresser, Caterpillar, Doosan, and plenty of other well-known brands. We've built up our international status thru tremendous client support. "Pneumatic" is a Greek word for "spirit". "Pneuma" means something which is filled with air. Nearly all tires you see or use these days are more than likely pneumatic tires. In fact, most private transportation and modern commercial transportation could not work without pneumatic tires. Webster's on line dictionary defines pneumatic tires as tires which are manufactured from reinforced rubber and could hold compressed air. Any tire which needs air pressure to hold its shape is considered to be a pneumatic tire. The invention of the pneumatic tire has been credited to Irish surgeon John Boyd Dunlop, who in eighteen eighty eight developed the first practical pneumatic bicycle tire. During the year 1895, the Michelin brothers Édouard and André, the Michelin brothers were the first to use pneumatic tires on a car during a race. Pneumatic tires are made up of bands of plys or corded fabric. These plys are coated with rubber to be able 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 90 degrees to the tire body or casing. Tube tires are a kind of tire that requires a rubber inner tube so as 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 creates an airtight seal with the wheel. This eliminates the need for an inner tube.