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Being one of the most basic human supercharged vehicles, the bicycle has two wheels tied to a vehicle that
is driven by a pedal. Bicycles were first presented in the 19th century and it is asked that presently there are approximately about
one billion bicycles worldwide, outnumbering automobiles 2 to 1. Bicycles being the main method of carry in many corners of the world, the bicycle is also majorly used for other recreational actions and for the purpose of fitness and even in the case of law enforcement activities such as petrolling an area.

History of Bicycles

Ever since the chain driven model was presented to the market, the key
innovation of the bicycle had remained unchanged up to day. But, other advances such as using computers to pattern
and check the stability have been made to the bicycle from its manufacturing process. These methods have greatly aided the spawn of
specialized bicycles for particular purposes such as racing, utility and law enforcement uses. In addition, many of the parts that played a
major role in the development of automobiles for instance, ball bearings, pneumatic tires and spoke tensioned wheels were initially intended for
the bicycle.

What to Look for In a Bicycle

When relating to bicycles, the dynamics of the bicycle should be considered first. A bicycle has to maintain its center of gravity over the wheels in order to stay upright or balanced.
Therefore, it reaches this by the moving forward using the steering which is unremarkably provided by the rider
and sometimes even by the bicycle itself. In addition in order to successfully navigate a turn, the combined or full center of mass
of both the bicycle and the rider must lean into the turn. A technique mentioned to as counter-steering is used to attain this task by directly turning the handlebars with the hands
or indirectly leaning or slanting the bicycle.

Bicycle can be classified as an extremely
economical machine looked at in both biological and mechanical view point. Energy needed from the rider for the bicycle to execute its
curiosities are high on the list but given the distance that a bicycle can take you through without fuel, it becomes a
valuable journey at the end. The bicycle wheels carry nearly 99% of the energy because the rider exerts energy to pedals. But in
bicycles that have gear mechanisms, the energy needed will be reduced Nonetheless the air drag faced by the rider will
always remain a problem. When the speed is high, a lot of energy will be needed
to overcome this airdrag resulting in an exhaustive ride for the rider. The only way to reduce the air drag is to significantly reduce the position to supine or prone that is in line with aerodynamics.

The main
features of a bicycle are frame, steering mechanics, seating, drivetrain, suspension, wheels and brakes. Certain bicycles may include optional
mechanics such as gearing which uses several sizes of gears to obtain a mechanical advantage from the bicycle. By using gears, the efficiency of the bicycle can be increased by descreasing effort and increasing output.

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