Whether a novice electric locomotive wants to buy his first helmet or an expert wants to replace an old or broken helmet, the headache is to make sure that the new helmet to be purchased is suitable for him. To be honest, this is not a very easy thing. The brain types of the yellow people are indeed diverse. They are rounder than the westerners in appearance, wider at the top of the skull, and more square in overall face shape. Not to mention that we Chinese also have a unique tradition that the global common people do not have: when children are just born, they should sleep hard on the pillow, and sleep the back of their heads flat. The boss said that Ping's back skull was beautiful, and it was unclear whether it was really beautiful, but it was true that it would cause a certain level of inconvenience to choose a helmet.
Generally speaking, the most critical way to initially evaluate the size of your helmet is to measure your baby's head circumference. The specific method is also very simple: use a tape measure to circle around the widest part of the inner upper part of the ear, and accurately measure the diameter. The actual data of the diameter is your baby's head circumference. Generally, centimeters are used as the enterprise; After obtaining the baby's head circumference, you can also compare the specification table obtained from the helmet manufacturer's official website to determine your helmet size. Take FLL helmet for example, 57cm - 58cm baby's head circumference must wear a size M helmet. It should be noted that each helmet manufacturer has a different size setting specification to ensure that they distinguish their size according to the specification table of the manufacturer of the helmet to be purchased. Since there may be differences between the manufacturer and the manufacturer, you may buy the wrong number. For example, Suomy who usually wears an M FLL may have to wear an L to be big enough.
However, the accuracy of the specification table is relatively limited, and the test belt is the most accurate way to distinguish the helmet that is suitable for you. The proper technique for wearing helmets is to wear them vigorously from the past to the future instead of putting them on rudely, which is very important and easy to ignore. If you notice that after wearing the helmet every time, the inside of your ear is folded in the helmet, you must use force to touch the inside of your ear, which means that your helmet wearing skills are wrong.
The actual operation steps are as follows: first, hold the fixed bandages on both sides of the helmet with the thumbs and ring fingers of both hands, and gently cover the helmet to the upper quarter of the skull; Then, the key factors to decide whether your helmet technique is appropriate or not appeared. Generally speaking, people pull the bandage down again until the skull is fully into the helmet, which is actually incorrect. The appropriate technique is: after the skull basically enters the helmet, use the six fingers left except for the strap with both hands, hold the front chin of the helmet, hold the front side of the helmet and pull it down until all helmets are put on. This kind of skill sounds ordinary, but it must be powerful. Try it and you will know it; Finally, lock the helmet and fix the strap. It is very important. The risk of not locking the helmet and fixing the strap is the same as that of not wearing the helmet. The helmet is likely to slip from the warrior's skull when the car falls, which does not play its role in maintenance.
If the helmet you wear is not a full helmet, but only a three quarter helmet, half helmet or cross section helmet, and there is no design scheme for the front chin of the helmet, this kind of skills can also be applied. After wearing the helmet lightly, one hand grasps the helmet belt again, the other hand presses the front upper end of the helmet, and then both hands put on the helmet vigorously. The most important rule of this technique is that when wearing a helmet, the key is to release the force to the front side of the helmet rather than the back side.
After putting on the helmet, first shake the helmet from side to side, to ensure that the helmet is not easily moved; Then, rotate the helmet up and down, and the inner cavity of the helmet should be close to your cheek. When the helmet is rotated, the flesh on the cheek will follow; Finally, try to wear a new helmet as long as possible, to understand whether there is a working pressure point generated by the inner cavity of the helmet on the skull. Note that even mild extrusion points and pain will turn into unbearable pain due to the accumulation of time in the case of long-term cycling.
The most important purpose of wearing helmet is to maintain the safety of warriors; The second key goal is to ensure the comfort of the warrior when riding a bike, but not to endanger the cycling; The third key point is that the aesthetic and generous level of the helmet can increase your brand image. Warriors should not choose a helmet that is not suitable for their own because they too like the shape of a helmet that is not suitable for their own brain type, or because a woodcut print only has yards that are not suitable for their own. It is a personal behavior at the end of the life cycle, which is likely to have safety risks, or a helmet that seriously endangers the riding quality must not be a good helmet.
