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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. By the early 21st century there were more ...
The price of a new bicycle can range from US$50 to more than US$20,000 (the highest priced bike in the world is the custom Madone by Damien Hirst, sold at US$500,000 [10]), [11] depending on quality, type and weight (the most exotic road bicycles can weigh as little as 3.2 kg (7 lb) [12]).
A bicycle or tricycle where the rider is placed in a laid-back position, feet first and sitting in a seat instead of on a saddle. Usually used for ergonomics or aerodynamics. All world land speed records are held by (enclosed) recumbent bicycles, but these bikes are not allowed in races governed by the UCI. [97] Rip To ride fast. [98] Rigid
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.
Porteur bicycles are a kind of cargo bicycle designed for carrying loads on a platform rack attached to the fork.; Butcher's Bikes typically have a basket or storage box mounted within a frame on the front of the bike, and would often feature an advertising sign attached within the main triangle of the bicycle frame.
Randonneuring is similar to the original Audax style in that riders attempt to complete long-distance cycling events. However, instead of riding together in a group, participants are free to cycle at their own pace (French: allure libre), stop or sleep wherever they want and form groups randomly, provided they stay within the time limit.
A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted.
Bicycle performance is measurable performance such as energy efficiency that affect how effective a bicycle is. Bicycles are extraordinarily efficient machines; in terms of the amount of energy a person must expend to travel a given distance, cycling is calculated to be the most efficient self-powered means of transportation .