In a motor vehicle, a flat tire occurs when a
tire becomes deflated and the metal of the
wheel comes in contact with the ground below (or ground level). This can occur for the following reasons
[1]:The tread of the tire wears down, exposing a hole in the tire. This occurs through normal wear-and-tear, and may be expedited when various conditions are not optimal.A foreign object, such as a
nail, pierces a hole in the tire, thereby letting out the air. Depending on the size of the hole, the tire may deflate slowly or rapidly. Some tires are flattened through acts of
vandalism.A tire may be damaged in a
collision with another vehicle or an object that causes the rubber of the tire to separate from the wheel, or that rips the tire to shreds. A bicycle may also suffer a flat tire when the
inner tube becomes deflated, damaged, or is worn.
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