Start by adjusting the simplest cushion Angle. The Angle of the cushion is roughly to maintain the level, because the cushion on the market is mostly curved, with visual may not be accurate, so you can first take a long ruler on the cushion, and then use the eye to catch the level, so it is much easier.

But the Angle of the cushion is by no means dead. For example, some people often complain of pain in the crotch after riding, which may be caused by excessive pressure on the front of the cushion. This is to adjust the nose of the cushion slightly downward, which can reduce the pressure on the crotch area, especially when going uphill. On the contrary, some people are not very long riding uphill, but love the fun of rushing down, and rushing downhill because of the relationship to control the center of gravity, riders often move around behind the cushion and cushion, then it is best to tilt the nose of the cushion slightly upwards a few degrees, while lowering the height of the seat tube, so as to help the body to be flexible on the cushion when going downhill.

Cushion height

The next step is to set the height of the cushion. The height of the cushion is the most important part of the bicycle setting, especially related to knee injury and stepping effort. If the cushion is too high, the knee is easy to injure, and the center of gravity is too high, and it is easy to cause accidents; If it is too low, the foot can not step on the power, and the long-term use of incorrect posture will also have a bad effect on the knees and legs. Only the correct height of the cushion can really play the proper stomping efficiency, and have the most correct and healthy stomping posture that does not harm the body, and not only will not radish legs, but also modify the leg type!

The knee joint is the most frequently used body part during cycling, but it is also the most vulnerable and most prone to injury. When our legs each step a circle, the knee joint will be active once, such frequent action, if the method of force, direction or position is not correct, it is easy to let the knee joint injury, or even a lifetime can not ride (many knee joint injury is difficult to recover), so be careful!

Set the height of the cushion often listen to some experts say what to (crotch length *0.885) how to measure? In fact, if you are not going to be a player, you really do not need to make a simple thing so complicated. Beginners as long as the "heel" on the pedal, and then step on a few times, slowly adjust the height of the cushion, until the lowest point when the knee is just straight (Figure B1), this time the height of the cushion is already eight or nine out of ten! According to such a standard cushion height, and then put the "sole of the foot" back to the original standard stampede position, so that the knee will naturally bend a little at the lowest point of the stampede (Figure B2), such a stretch position can both take into account the power of the stampede, and will not allow the knee joint to be injured when trampled. Of course, if the novice suddenly can not get used to such a high riding position, you can also reduce this "standard cushion height" by one or two centimeters, or even three or four centimeters, or in an acceptable range.

When setting the height of the cushion, the most taboo is to pull the cushion too high (there are many middle school students on the road like to play cool, deliberately pull the cushion very high, pretending that their feet are very long), such a height of the cushion will make the knee straight (Figure B3), it is a very dangerous action! Like cycling, the legs need to frequently make the action of stepping and turning, then if the knee is straight, not only will the stampede have a "ton point", affecting the continuity of the stampede, and the knee is also very injured when the knee is straight and the leg ligament. Although there will be an illusion of stepping force "straight out" after pulling up the cushion, as if to step out of this position, but in fact, whether it is muscles or knee joints are easy to wear and tear at this time (knee straight). So one thing to remember! You should never keep your knees straight on a bike.

The height of the cushion can not be too low, general beginners because they are not used to the high center of gravity riding posture, so often will pull down the height, and pull too much, so "squat riding" posture will let the strength of the legs can not be extended (as shown in Figure B4), although riding at ease (because the center of gravity is low, and the soles of the feet can step on the ground), But stretched thighs, calves, and knees will not only make you ride fast, but also easily cause muscle and joint wear and tear over a long period of time.