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In our daily life, we can see a lot of bicycles on the street. It is one of principle transportation modes in the world. Due to the development of the environmental protection, bicycles are becoming more and more popular in many regions.
Although the form of bicycles is not complicated when compared to that of the automobiles, it still has many components. For example, frame, brake, wheels and so on. These different parts consist of the whole bike. Meanwhile, they all have their own characteristics. Now, let us see some specific information about the basic components of bicycles.
The most important part, of course, is the frame. It is just like the framework of the architecture without which the whole building can not be finished. As for a bike, wheels and other important components are all fitted on the frame. There are various kinds of frame designs for different bikes. The most common and modern frame design is the diamond frame which consists of two triangles, a main triangle and a paired rear triangle. In this kind of the frame design, the head tube, top tube, down tube and seat tube form the main triangle. And the rear triangle consists of the seat tube, paired chain stays and seat stays.
The second component I would like to say is the drivetrain system of the bicycle. It is used to transmit power on bikes from riders to the drive wheels by many methods. Drivetrain systems are designed to convert speed and torque. In this system, the bicycle chain is rather important. It is a roller chain that is set to transfer power from the pedals to the drive-wheel of the bike. As in a chainless bicycle, the power is transmitted to the driven wheel through a mechanism other than a metal chain.
Addition to the above two components, there is a necessary part called brake. The bicycle will not be safe without a brake system which is used to slow or stop a bike when necessary. Same like the frame, bicycle brakes are also various. Among all the different brakes, rim brake, disc brake, and drum brake are the main types. Taking the rim brake as an example, because the braking force is applied by friction pads to the rim of the rotating wheel, and then slowing it and the bicycle, as a result, it is called the rim brake. Generally, it is activated by the riders squeezing a lever mounted on the handlebar.
In order to make the bicycles run on the road, wheels are indispensable. On the bicycle, the wire wheels are commonly used. And the two wheels form a pair which is often called the wheelset. There are many components which consist of the whole wheel. For instance, the hub, the axle, the metal or carbon fiber rim and the wire tension spokes.
Except for the above mentioned parts, there are still many other important components that related with the bicycle. All of them are essential for the bike. Only all the parts work well with each other can the bicycle perform well.
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