| Bicycle is one of the oldest vehicles
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| | handlebars (which are counterpart of
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| used by man. It consists of a light
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| | steering wheel), brakes, and a couple of
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| casing built over two wheels (one
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| | pedals or a small motor to propel the
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| following the other, with each of them
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| | bicycle.
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| being pierced with wire), a seat,
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