How to choose a bike

Select the bike is not primarily a good look at the frame , the second look is not good parts, three assembly technology is good to see . After these three factors are combined scientifically to be a good bike.
First, the frame:
1 What is the frame ?
Frame equivalent to the Electric scooters human skeleton , with the frame to put on a variety of bicycle parts . A frame made ​​of iron , aluminum and other materials, according to the angle of the length of the pipe , etc. affect the characteristics of the overall configuration of the bicycle . For example , a good bike ride straight , easy to turn the bike , comfortable riding bicycles , many of these factors are decided from the frame.
2 How can I be a good frame ?
Light , fast , flexible frame and so is one of the objectives pursued , in order to achieve this goal, each frame depends on the manufacturer's process . If the frame is designed according to the characteristics of the material strength and design , welding technology is mature . These have a direct impact on the appearance of the frame , the strength and elasticity. There are more important is painting, painting a good frame electric trike evenly and 3-4 layers of spray paint . Do not underestimate the paint, make the bike easy to maintain good paint , rust . If the frame does not meet the above requirements to loading , then there may not be a straight line to produce a bike ride or difficult to turn , or will soon retire bike.
The frame is composed of what material ?
Most iron frame , but the frame is divided into iron in the iron added to the other extreme frame chrome molybdenum steel, high strength steel , ordinary steel , etc. , after adding the other ingredients , for example can be made thinner pipe, makes the frame lighter overall . Recently, on the basis of the intensity is not reduced , there has been used a frame material other than iron , such as aluminum. Bicycle race to have carbon fiber material using titanium frame .
Second, the component parts
1 What is bicycle parts
Mounted on the frame of a wide variety of parts has its own role , for example , is to make bicycle safety brake to stop ; pedal power is transmitted to the wheels , etc., specialized factory production and sale of these parts is called bicycle parts manufacturers, parts manufacturers are famous annual development of new products, which also provided to the major bike manufacturers, and then appeared on the market .
2 What is the best bicycle parts ?
Simply speaking is both light and strong , and the performance is better . With these conditions because it was easy bike ride , safe and convenient . But to achieve all of the above conditions , you need good material . So, bicycle parts is often a specific factor about bike prices. The best is to be able to participate in the Olympic race bike parts . Regardless of the strength properties of the weight or the best materials are used .
Third, assembly technology
1 assembly technology
Good parts if assembled properly, it will go through as neither attentive design architect , nor experienced craftsmen to build the house, make your nervous all day , for fear it would collapse. So , if you do not want to buy later regret , you should be aware of this knowledge .
2 . Comfort features bicycle
A. Transmission ?
Many people mistakenly believe that the bicycle is equipped with a transmission speed in order to speed up riding , in fact, people can send a maximum power of only 0.4 horsepower. Transmission is designed to help people easily play these maximum horsepower out of the tool.