Evolution of cycling began 1818 with push-bikes or horse enthusiasts, which resembles a wooden frame supported by two-wheeler online and drivers to drag its feet, while navigating the front wheel. Then in 1839, it was refined, as a mechanical crank player was added to the rear wheel.
A new design of the bicycle marked his debut in 1850 and 1860, as French, Pierre Michaux and Pierre Lallement pedals placed in a front wheel extended. It was wrought iron and wood with a fixed amount with wire wheels with rubber tires on a full tubular steel frame. But faced with this problem, a seat and very uneven weight distribution.
Then, these problems have been solved to some extent by reducing the diameter of the front wheel and added gables achieve enough speed, adjust the seat in the middle, etc. But there is a big problem with the front wheel Because the two were pedal and monitor attached to him. So J.K. Starley, J.H. Lawson Shergold and pedals with the rear wheel of the chain reduction system problem. These bikes have received a name of security bicycles or dwarf guarantees, because they had lower with an equal distribution of seats weight.
Golden Age of bicycles began in 1890, as new innovations, these bikes more comfortable. Tyres tires was an invention of the Scots John Boyd Dunlop in 1888, then just coasting was developed. Then, ribs brakes were invented during the year 1898. This period also marked by the introduction of hand-and derailleur cables-pull brakes. Soon, she was famous throughout the world because of its great use value alsmost in all areas. It was in India to distribute milk in homes, carrying letters for e-mail transmission, military force for movement, and it was also a source of relaxation.
With a volume of technology and modern materials, various types of bikes are put on the market. There are a number of utilities bikes, racing bikes, mountain bikes, BMX bikes, and more. You can choose the type of cycling in accordance with its requirements in terms of functions, the number of drivers, etc.
A driver travelling by bike, maintain, it will continue to focus on its wheels. It is based in this regard a turning point, clicking on the handlebars with his hands. It uses the brakes to stop, as the brakes of arrest is to force the front wheels. It is part of energy efficiency in the transport, because it requires very little energy in the race at a slow pace and transfer 99% of the power of a driver on wheels.
With an influx of technology and innovatios, design a bike is remarkably changed. There are several models for men and women, races and races normal, air cargo companies and circuses. Each model has its own unique characteristics as regards compliance with the requirements as drivers exclusive sprockets for the equestrian sport, upholstered stool for a short jumper, disc brakes for Off-Road-drivers, etc.
The use of the bicycle has not only improved man from day to day life, but also a contribution to improving the environment, because the bike doesn’t contribute to polllution. In addition, a positive impact on the public health. The manufacture of bicycles led deveopment other sectors such as the composition of ball bearings, teeth, washing machines, etc., because many companies are part of bicycles and purchase other items from other companies.
