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A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered or motor-assisted, pedal-driven, single-track vehicle, with two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist. Bicycles were introduced in the 19th century in Europe.
Cycling. European city bike. Children riding a bike in Ghana. Cycling, [1] also known as bicycling[2] or biking, [3] is the activity of riding a bicycle or other type of cycle. It encompasses the use of human-powered vehicles such as balance bikes, unicycles, tricycles, and quadricycles.
A lugged steel bicycle has a frame made of steel. An aluminium bicycle has a frame made of aluminium alloys. A plastic bicycle was an attempt in the early 1980s to introduce a bicycle made entirely out of plastic materials instead of metal. A wooden bicycle has a frame made out of wood.
An electric bicycle, e-bike, electrically assisted pedal cycle, or electrically power assisted cycle[1] is a motorized bicycle with an integrated electric motor used to assist propulsion. [2][3][4][5][6] Many kinds of e-bikes are available worldwide, but they generally fall into two broad categories: bikes that assist the rider's pedal-power (i ...
History of the bicycle. 1886 Swift Safety Bicycle. Vehicles that have two wheels and require balancing by the rider date back to the early 19th century. The first means of transport making use of two wheels arranged consecutively, and thus the archetype of the bicycle, was the German draisine dating back to 1817.
The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles: a main triangle and a paired rear triangle. This is known as the diamond frame. [1] Frames are required to be strong, stiff and light, which they do by combining different materials and shapes.
Road bicycle. An aluminum road bicycle made by Raleigh and built using Shimano components. It uses wheels with a low spoke count for reduced air drag. The term road bicycle is used to describe bicycles built for traveling at speed on paved roads. Some sources use the term to mean racing bicycle.
Road cycling is the most widespread form of cycling in which cyclists ride on paved roadways. [1] It includes recreational, racing, commuting, and utility cycling. As users of the road, road cyclists are generally expected to obey the same laws as motorists, however there are certain exceptions. [2] While there are many types of bicycles that ...