1. Choose a helmet that fits your head

Whether the helmet is suitable or not directly determines whether it can achieve the desired protective effect. It should not be too loose or too tight when wearing. If the helmet is too loose, it will cause secondary head injury or direct separation from the head; If it is too tight, you may not be able to wear it, or your head may be too tight when you wear it, without comfort; The more direct feeling is that after wearing the helmet, the facial muscles are jacked up by the helmet liner, so that the head will not be injured again, and the danger caused by helmet detachment can be prevented.

2. Helmets made of different materials: most helmets are made of ABS plastic, glass fiber reinforced plastic and carbon fiber

ABS plastic:

Ordinary helmets are basically made of ABS. Although the cost of this material is not high, the ABS raw materials used by different brands are good and bad, and the fall strength is also determined by the quality of the materials used; And the helmets made of ABS are relatively heavy, with prices ranging from several hundred yuan to one thousand yuan. This material is widely used in automobile, electronic and electrical, office and communication equipment and other fields.

FRP:

Compared with the ABS helmet, the helmet made of this material is light and hard, and has the advantages of high mechanical strength, corrosion resistance, and less recycling. This material is widely used and has a good performance in industry and daily life. The production of this helmet is not high and the price is moderate.

Carbon fiber:

This material is lighter than aluminum metal, but its strength is higher than that of steel, and it has the characteristics of corrosion resistance and high modulus. It is an important material in national defense, military industry and civil use. The well-known F1 car body is made of this material, and the price of helmets is generally above 1000 yuan.