Bicycle infantry are infantry soldiers who maneuver on (or, more often, between) battlefields using military bicycles. The term dates from the late 19th century, when the "safety bicycle" became popular in Europe, the United States, and Australia. Historically, bicycles lessened the need for horses, fuel and vehicle maintenance. Though their use has waned over the years in many armies, they continue to be used in unconventional armies such as militias.
The development of pneumatic tires coupled with shorter, sturdier frames during the late 19th century led to the investigation of possible military uses for bicycles. To some extent, bicyclists took over the functions of dragoons, especially as messengers and scouts, substituting for horses in warfare. Bicycle units or detachments were in existence by the end of the 19th century in most armies. The United Kingdom employed bicycle troops in militia or territorial units, rather than in regular units. Essentially this reflected the popularity of cycling amongst the civilian population and the perceived value of bicycles in providing increased mobility for home defence units.
In 1887 the first of a series of cyclist maneuvers involving British volunteer units was held. In France, several experimental units were created, starting in 1886. They developed folding bicycles, that could be collapsed and carried slung across the backs of their riders, from an early date. By 1900 each French line infantry and chasseur battalion had a cyclist detachment, intended for skirmishing, scouting and dispatch carrying. In the years prior to World War I the availability of an extensive network of paved or gravel roads in western Europe made military cyclists appear a feasible alternative to horse-mounted troops; on the grounds of economy, simplicity of training, relative silence when on the move and ease of logistical support. The Dutch and Belgian armies, with extensive flat terrain within their national boundaries, maintained battalion or company sized units of cyclists.