A bicycle or just cycle is a human-powered vehicle driven by pedals. It has two wheels attached to a metal or in some cases hard plastic frame, one on the forehead and the other in the back.

History of a bicycle

The bicycle was introduced in Europe in the 19th century. At present their number is higher one billion worldwide. Used as a primary mode of transportation in some areas of the world, especially in the Netherlands and China. They have also developed as a way very popular for recreation and entertainment. Other fields of human activities that have been adopted are adult fitness, children `s toys, police and applications military, sports and cycle courier services. Thus, during the period of time the humble bicycle has assumed many roles!

The configuration basic and common form of a bicycle has changed very little since it was developed the first model driven by chains again in 1885. However, few details Subtle have done better with the growing use of computers and the improvement in materials technology. The use of modern technologies have made it possible to produce specialized designs for different types and uses of the bicycle.

Parties and the construction of a typical bicycle

Wheels – is the most important of any vehicle. The initial wheels used a wooden bucket with a steel shaft, wooden beams and a tire iron that is installed on the outside. The wheels used today have a center of metal, metal wire spokes, a metal ring to hold the spokes and a rubber tire air outside. Another important part of the wheel are the bearings that allow free movement of the axle shaft.

Marco – most bikes used today has the diamond frame. It `s made up of two triangles, the front and rear. The front triangle has the top tube, head tube, seat tube and down tube. Tube head is the part that contains the headset bearing to enable the smooth direction, the tube is connected to the top of the seat and down tube connects the head tube and bottom bracket. The rear triangle has the tube seat, the straps and even sheaths.

Drivetrain – consists of the pedals, which rotates the crank arms, which in turn are connected to a wheel ring gear or the chain leading to the chain and makes the rear wheel spins.

Seats and address – the address you can use the handle that rotates the front wheel. The seats there are no chairs at the top of the frame. The seat can be designed for comfort or to make a bike faster and smoother.

Brakes – the brakes are used on modern bikes rim brake pads used to compress the wheel of the 2 sides and stopping it, internal hub brakes that have the pills within institutions or disc brakes. Braking in bicycles is hand-operated pressing the brake lever on the handlebars installed on both sides.

Suspension – The system is incorporated to make the cycling experience smoother.

Accessories – Parts as mudguards to avoid spray from puddles, guards chain to keep clothes from oils, kick is to maintain the bicycle upright while parked have become permanent features of a bicycle. Other accessories like front baskets, rear racks, space for head lamp, pump, helmet, tool kit, etc. are also available as order.

The use and development of bicycles have affected humanity in a bigger way than it seems. It has affected history in industrial and cultural fields. In the early years, bicycles and its construction depends on technology that existed, more recently, its technology, in turn forward the ideas given in different areas.

Roberto Sedycias works as IT consultant for PoloMercantil

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