Insome This particular region is expected to remain the most important market for electric bikes worldwide.
Balance bicycle for young children The bicycle has undergone continual adaptation and improvement since its inception. These innovations have continued with the advent of modern materials and computer-aided design, allowing for a proliferation of specialized bicycle types, improved bicycle safetyand riding comfort.
Types Bicycles can be categorized in many different ways: The more common types include utility bicyclesmountain bicyclesracing bicyclestouring bicycleshybrid bicyclescruiser bicyclesand BMX bikes.
Less common are tandemslow riderstall bikesfixed gearfolding modelsamphibious bicyclescargo bikes, recumbents and electric bicycles. Unicyclestricycles and quadracycles are not strictly bicycles, as they have respectively one, three and four wheels, but are often referred to informally as "bikes" or "cycles".
Bicycle and motorcycle dynamics A bicycle stays upright while moving forward by being steered so as to keep its center of mass over the wheels.
This lean is induced by a method known as countersteeringwhich can be performed by the rider turning the handlebars directly with the hands  or indirectly by leaning the bicycle. Bicycle performance The bicycle is extraordinarily efficient in both biological and mechanical terms. The bicycle is the most efficient human-powered means of transportation in terms of energy a person must expend to travel a given distance.
Air drag, which is proportional to the square of speed, requires dramatically higher power outputs as speeds increase. Drag can be reduced by seating the rider in a more aerodynamically streamlined position. Drag can also be reduced by covering the bicycle with an aerodynamic fairing.
The fastest recorded unpaced speed on a flat surface is Bicycle frame Diagram of a bicycle. The great majority of modern bicycles have a frame with upright seating that looks much like the first chain-driven bike. The front triangle consists of the head tube, top tube, down tube, and seat tube.
The head tube contains the headsetthe set of bearings that allows the fork to turn smoothly for steering and balance. The top tube connects the head tube to the seat tube at the top, and the down tube connects the head tube to the bottom bracket.
The rear triangle consists of the seat tube and paired chain stays and seat stays. The chain stays run parallel to the chainconnecting the bottom bracket to the rear dropoutwhere the axle for the rear wheel is held. The seat stays connect the top of the seat tube at or near the same point as the top tube to the rear fork ends.
A Triumph with a step-through frame.
Historically, women's bicycle frames had a top tube that connected in the middle of the seat tube instead of the top, resulting in a lower standover height at the expense of compromised structural integrity, since this places a strong bending load in the seat tube, and bicycle frame members are typically weak in bending.
This design, referred to as a step-through frame or as an open frame, allows the rider to mount and dismount in a dignified way while wearing a skirt or dress.
While some women's bicycles continue to use this frame style, there is also a variation, the mixtewhich splits the top tube laterally into two thinner top tubes that bypass the seat tube on each side and connect to the rear fork ends.Bicycle messenger. K likes.
Bicycle messengers are people who work for courier companies carrying and delivering items by bicycle. Bicycle messengers. A bicycle, also called a cycle or bike, is a human-powered or motor-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other.A bicycle rider is called a cyclist, or bicyclist..
Bicycles were introduced in the late 19th century in Europe, and by the early 21st century, more than 1 billion were in existence at a given time.
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The brand from yesterday that's riding into tomorrow: Schwinn was established in , by Ignaz Schwinn in Chicago, IL.
Remembered for iconic bikes like the Phantom, the Varsity, the Stingray and the original Krate and Picker series of children's bikes, Schwinn has made it possible for riders of all ages to experience the thrill of riding a bicycle.