Sep152012
0 Comments
Cycling, also called bicycling or biking, is the use of bicycles for transport, recreation, or for sport.[1] Persons engaged in cycling are referred to as “cyclists”,[2] “bikers”,[3] or less commonly, as “bicyclists”.[4] Apart from two-wheeled bicycles, “cycling” also includes the riding of unicycles, tricycles, quadracycles, and similar human-powered vehicles(HPVs). Bicycles were introduced in the 19th century and now number about one billion…