How to give full play to the powerful advantage of bicycle speed change in cycling race? Today, we’ll explain the application of speed change skills in cycling race: first, generally, a slightly smaller gear ratio can be used for the few kilometers of warm-up, so as to expand blood vessels and open muscle activities.
When entering the real high speed, the gear ratio can be gradually increased, and the situation can change flexibly with the change of road surface, When sprinting at the end, you should slightly reduce the gear ratio, but at this time, you should use skills and try not to let others notice.
In this way, when the frequency is slightly adapted to the high speed, start the last moment to adjust and lighten the first gear, because it can easily accelerate suddenly, sprint at the fastest frequency and exhaust all the reserved last moment, but the distance and timing must be very important.
Because amateur drivers are in different physical conditions and the weight of equipment is also very different (generally, light cars and heavy cars can be one or two teeth away from the back, and travel at the same pedal frequency).
However, although light cars have good acceleration and climbing, they are more affected by wind resistance than cars.
Therefore, using light cars must have better speed change skills to give full play to their strengths, The same is true for heavy and light athletes to control their speed change.
However, the maximum tooth ratio and the smaller tooth ratio are not good.
Many enthusiasts think that the largest in front and the smallest in back can obtain a better speed at the lowest frequency.
In fact, this is wrong, because a large rotation ratio will lead to greater force and lower frequency of each foot, slowing down the blood circulation speed and more likely to lead to muscle hypoxia.
At the same time, the flyer with 11 teeth or 12 teeth is the least durable in the whole transmission system, The real ones are used at high frequency and high speed when going downhill.
Novices often change speed immediately when they see a big slope and use a smaller transmission ratio, which directly leads to the sudden rise of frequency.
When the muscles do not adapt, they will immediately feel muscle fatigue.
Moreover, due to the light tooth ratio, the speed will immediately decrease.
When they see other drivers surpass, it will also lead to the rise of the frequency of legs that have been suddenly tired again.
In this way, after only one or two slopes, If the transmission is relatively small, it will immediately show weakness.
Therefore, the correct climbing speed change should be that the car has moved to the half slope, the foot begins to feel the pressure rise, and then starts to change the speed.
Moreover, the adjustment range is generally two or three flights at a time.
It depends on the specific slope improvement.
This requires not only physical strength but also experience.
Standing pedaling at the beginning of climbing can also provide greater speed, and can delay the reduction of gear ratio, However, the foot has enough suitable time for frequency In addition, Banpo shift often encounters that the chain cannot be shifted back due to too much tension.
Here is a little skill.
When the front disc is shifted back, the foot should be slightly lighter, which can slightly relieve the chain pressure and make it easier for the chain to retreat like a small disc.
Similarly, the same skills should be used for the rear flying shift when the chain collapse on the Banpo is very tight and the pressure is very high, which has a certain protective effect on the whole system.
Due to the different types of vehicles and the specific conditions of amateurs, we do not provide specific reference standards here.
In short, speed change is a very important skill.
Appropriate speed change can help you ride faster and easier.
Generally, it is incorrect to adopt the large plate to big fly and small plate to small fly.
The large plate to big fly will make the chain tension too large, which will cause certain damage to the back shift, and such a speed change mode will also aggravate the friction due to the excessive chain tension.
For example, when the chain and the small wheel are bumped too fast, it will cause damage to the small parts of the transmission system, because the chain and the small wheel will be bumped too fast, which will also cause damage to the small parts of the transmission system Therefore, the high speed should be big to small, and the lightest climbing should be small to big, which is the more correct way to use the variable speed…