Speed ​​change tips

Choosing a too large and a too small tooth ratio is not appropriate. Generally, the warm-up roads can be used with a slightly smaller tooth ratio. This allows the blood vessels to expand and allow the muscles to open. The tooth ratio can be gradually increased when entering real high speeds. As the road surface changes from top to bottom and changes flexibly, it is necessary to slightly adjust the small-to-tooth ratio at the end of the sprint. However, it is necessary to use techniques to try not to let others notice, so that when the frequency is slightly adapted to the high speed, the last moment is started. The adjustment is lighter, because it can be easily accelerated suddenly, sprint with the fastest frequency, and all reservations are exhausted in the last moment, but the timing must be accurate.

Because the amateurs have different physical conditions, the weight of the equipment varies greatly (usually the light and heavy cars can have one or two teeth behind and travel at the same pedaling frequency), but the light vehicles are accelerated and The climbing is very good, but it is affected by the wind resistance and the proportion of cars is bigger. Therefore, the use of light vehicles must have better speed-changing skills in order to exert their strengths. The same heavy and light weight players are the same reason to control their own speed changes.

However, the maximum number of teeth and the smaller ratio of teeth are not good. Many enthusiasts think that the largest front and rear are the smallest and can obtain better speed at the lowest frequency. In fact, this is not correct because the large rotation ratio will result in each Feet are more powerful and less frequent, making the blood circulation slower and more likely to cause muscle hypoxia. At the same time, the 11-tooth or 12-teeth flyers are the least durable in the entire transmission system, and the real ones are used in the lower High frequency and high speed at the time of slope.

Newcomers often see an immediate shift in a large slope and use a smaller transmission ratio. This directly results in a sudden increase in frequency. Muscle fatigue is immediately felt when the muscles do not adapt, and because the teeth are too light. , will lead to an immediate drop in speed, when you see other riders beyond the time will also lead to the frequency of leg fatigue that has already suddenly fatigued again, so that as long as one or two slope, the drive is relatively small will immediately show weaknesses, so the correct The climbing speed change should be that the car has already reached the half slope, the foot begins to feel the pressure rise, and then the speed change begins, and the adjustment range is usually 2 pieces of fly or 3 pieces of fly. It depends on the specific grade increase to decide. This not only requires physical strength but also Experience requires that stand-up pedaling at the beginning of a hill climb can also provide greater speed, and it can delay the reduction of the tooth ratio, but there is enough time for the foot to follow the frequency.

In addition, the semi-transverse shift often encounters the chain because the tension is too large and causes the front dial to fail to retract. There is a small technique here. When the front plate is retracted, the feet are slightly lighter. This can slightly relieve the chain pressure and make it easier. Let the chain retreat to a small plate. Similarly, the same technique should be used when the rear-flying gear has very tight pressure on the collapse of the semi-slope chain, which has a certain protective effect on the entire system.

As the specific conditions of the vehicle type and amateurs are different, we will not provide you with specific reference standards. In short, speed change is a very important skill. The proper speed change can help you ride faster and easier.

The general use of the large market for the big flight and the small disk for the small fly is not the correct transmission method, the large disk will make the chain tension is too large for large fly, for the rear dial is a certain damage, and this kind of transmission will also be due to chain tension Excessive friction leads to increased friction. The small disk is also an incorrect shift for Xiaofei, because it will make the chain too loose, causing problems in severe jolts (such as the chain hit the frame, the chain shakes against the edge of the tire), and the small disk and small fly Both are the fastest wear parts in front and rear drive systems. Therefore, high-speed should be a large market for small flying, and the lightest climb should also be a small disk to the big fly, so that is the more correct use of variable speed.

In addition, the 22nd tooth of the MTB is actually the lowest frequency part. One of the main uses of this small disk is to prevent the chain from dropping directly when the second layer is bumpy, while using 22 small disks to fly. It is very easy to cause the rear wheels to skid and lose speed. Therefore, mountain bikes should use the speed change as much as possible to avoid the use of this layer, only a small amount will be used in the super steep slope, and once you use this layer, you must pay attention to pedaling. The sleek, otherwise it is difficult to climb steep slopes.