A bicycle is a human power-driven vehicle that has a frame attached with two wheels and that is
driven by a pedal. presented during the 19th centuries bicycles are known to outdo the
full number of motor vehicles by a ratio of 2 to 1. In many parts of the globe, bicycles are the main method of transport. Although
the primary use of the bicycle is as a means of transport, it has developed other uses including recreational activities, fitness activities
law enforcement diligences and competitive sports.

Bicycles and Its Story

Ever since the chain driven model was presented to the market, the key
pattern of the bicycle had remained unchanged up to day. But, other advances such as using computers to innovation
and check the stability have been made to the bicycle from its inventing process. Some bicycles are particularly
factory-made to adhee to standards of racing, cyclicling on mountains and even for law enforcement. Additionally, the concept of the bicycle has up to a great extent extended its contribution for the development of motorcars by introducing concepts such as ball bearings, pneumatic tires and spoke tensioned wheels.

Features of a Bicycle

Dynamics
of the bicycle is something that should be mentioned to first. A bicycle has to maintain its center of gravity over the wheels in order to stay upright or balanced.
Therefore, it achieves this by the moving forward using the steering which is ordinarily 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. Counter-steering is a task that is used in this regard.

Through both biological and mechanical view points, the bicycle is an highly
economic machine. 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 decreased 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. Nonetheless, the exerted drag can be significantly
reduced by placing the rider in a supine or a prone position and by covering the bicycle with fairing that is aerodynamic.

The main parts of the bicycle include the frame, steering mechanics, seating, drivetrain, suspension, wheels and brakes. Certain bicycles may include optional
mechanics such as gearing which uses peculiar sizes of gears to obtain a mechanical advantage from the bicycle. Using gears a rider can produce a higher power output with a relatively low
power input and thus, maximising the efficiency of the bicycle.