A bicycle, or bike, is a pedal-driven, human-powered vehicle with two wheels attached to a frame, one behind the other. The International Union of Cycling adds the provision that the seat be more or less above the pedals, thus excluding recumbent bicycles.
First introduced in 19th-century Europe, bicycles now number over one billion worldwide, providing the principal means of transportation in many regions, notably China and the Netherlands. They are also a popular form of recreation, and have been adapted for use in many other fields of human activity, including children's toys, adult fitness, military and local police applications, courier services, and cycle sports.
The basic shape and configuration of the bicycle's frame, wheels, pedals, saddle, and handlebars have hardly changed since the first chain-driven model was developed around 1885, although many important details have since been improved, especially since the advent of modern materials and computer-aided design. These have allowed for a proliferation of specialized designs for individuals who pursue a particular type of cycling.
The bicycle has affected history considerably, in both the cultural and industrial realms. In its early years, bicycle construction drew on pre-existing technologies; more recently, bicycle technology has, in turn, contributed ideas in both old and newer areas... more
Bicycle - Wikipedia, the free encyclopedia
Sun, 07 Feb 2010 10:04:00 GMT
A bicycle, also known as a bike, push bike or cycle, is a pedal-driven, human-powered, single-track vehicle, having two wheels attached to a frame, one behind the other. Visit
Mountain Bike Trails, Reviews, Parts, Gear, Photos, and Videos | MTB ...
Mon, 08 Feb 2010 10:53:00 GMT
Mountain bike photos, videos, news features, gear, reviews, trail descriptions, athletes, race results and more. Bike is the world's leading mountain bike magazine. Visit
Bicycle.com Bikes, Gear, Training, Reviews, Maintenance
Tue, 02 Feb 2010 10:32:00 GMT
Information on all Bicycle Types: mountain bikes, road bikes, bmx and more. Also bicycle parts and accessories, cycling apparel, bike shops, and more. Visit
Trek Bicycle Corporation
Sun, 07 Feb 2010 08:39:00 GMT
Information about this Waterloo company's bicycles, accessories, and dealers. Also has a section for bicycling trails, clubs, and events. Visit
Bicycle .net :: cycling news, races, bike product reviews, training ...
Sun, 07 Feb 2010 08:10:00 GMT
February 5th, 2010. LUXEMBOURG, Feb 5, 2010 (AFP) ? Luxembourg?s Franck Schleck said Friday he wanted to continue to race in the same team as his 2009 Tour de France runner-up ... Visit
GT Bicycles | Welcome to GT
Sun, 07 Feb 2010 10:04:00 GMT
1/27/2010: Race Report - Guthrie, OK - ABA Joey Bradford: AA Pro - Saturday: 5th Pro Cru... 1/27/2010: GT Flow Rider Calvin Krey Bike Check Sunsets, took a minute to ... Visit
www.mongoose.com
Sun, 07 Feb 2010 17:21:00 GMT
Mongoose is a brand name of performance bicycles designed, manufactured, and sold by Pacific Cycle, a subsidiary of Dorel Industries. Visit
Bike - Wikipedia, the free encyclopedia
Sun, 07 Feb 2010 06:23:00 GMT
Bike may refer to: Abbreviation for either bicycle or motorcycle; Bike Company; Bike, Ethiopia; Bike Magazine, a UK magazine about motorcycling; Bike (song), by Pink Floyd Visit
Hybrid Bikes : Bicycles Folding : Cruiser Bikes : Commuter Bicycle ...
Sun, 07 Feb 2010 19:37:00 GMT
Dynamic Bicycles are made to simplify your life. We use Shimano internal gear hubs to make our bikes easier to operate and easier to maintain. Come find the best selection of ... Visit
Bicycling Magazine: Bikes, Gear, Training, Reviews, Maintenance
Sun, 07 Feb 2010 01:15:00 GMT
Bicycling Magazine features bikes, bike gear, equipment reviews, training plans, bike maintenance how tos, and more, for cyclists of all levels. Visit
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