Bicycle Transmission Principles and Techniques (1)

Bicycle Transmission Principles and Techniques (1)
Generally, bicycles are used in the city, and there are actually many slopes in the city. For example, sometimes when riding a bicycle, the pedals suddenly become heavy, and there are often many slopes that cannot be judged by eyes. At this time, the role of the transmission can be fully reflected. If there is a transmission, as long as it can be changed to a lighter gear, you can ride easily. Of course, this method can also be used in headwinds.
The advantage of a derailleur is that it can help reduce physical exertion effectively in the case of poor physical strength. For example, when you have a cold, the physical exertion should not be too large. If you choose a lighter gear when riding, you will feel very relaxed. There are also women who are not in good health, students who are tired from exams, older people, etc., all can use bicycle derailleurs flexibly, so the benefits of derailleurs are indeed numerous.
If the gear is too light, the force of the rider when pedaling is easy to be uneven. If the force of the legs is too heavy, the rider's buttocks will not be able to sit on the seat cushion stably, resulting in the so-called hip jump. In addition, due to the excessive force on the legs, the pedaling posture changes, which affects the smoothness of the pedaling action; there are also many beginners who lack training at the beginning and lack sufficient muscle endurance in the legs. You can move forward with greater power, but also because the muscles cannot bear the pressure, causing sports injuries such as knee joints or muscle strains. Beginners should measure their physical fitness, and do not reluctantly use heavy gears because of the pursuit of speed. over long distances.
Novices often shift gears immediately when they see a big slope, and use a smaller gear ratio, which directly leads to a sudden increase in frequency. If the muscles are not adapted, they will immediately feel muscle fatigue, and because the gear ratio is too light. , it will lead to an immediate drop in speed. When other drivers overtake it, it will also cause the frequency of the suddenly tired legs to rise again. In this way, as long as one or two slopes are passed, the smaller transmission will immediately show weakness, so correct The climbing speed should be that the car has already traveled to the half slope, the foot begins to feel the pressure rise, and then starts to change the speed, and the adjustment range is generally 2 fly or 3 fly at a time, depending on the specific slope improvement. Experience is needed. Standing pedaling can also provide greater speed at the beginning of the climb, and it can delay the reduction of the gear ratio, and the foot also has sufficient time to adapt to the frequency.