A bicycle (Latin bi; Greek κύκλος - circle, wheel, wheel) is a land vehicle on two wheels that is driven by a driver (cyclist) with his own power using a pedal. It began to be used in 19th century Europe, and by the early 21st century, more than one billion had been produced worldwide. [1] [2] [3] Their number far exceeds the number of cars, in terms of total number and number of individual models. They are the main means of transport in many regions.
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