Choose helmet will face what problem? How to choose?
Time:2016-10-28 11:09:07
In addition to size, brand, the problems of design and color, we often pay more attention to the material of the helmet. General helmet shell is divided into four kinds of material.
ABS resin is one of the five synthetic resin, its impact resistance, heat resistance, low temperature resistance, chemical resistance and excellent electrical properties, but also has easy processing and products good size stability, surface gloss, easy painting, coloring.
Composite materials (Composite materials), is made up of two or more different nature of the material, through physical or chemical method, on the macro components with the performance of new materials.
Glass fiber reinforced plastic (FRP) is also called GRP, namely fibre reinforced plastics, generally refers to using glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix, it actually has nothing to do with steel. With glass fiber reinforced plastic or its products as reinforced material, appellation for glass fiber reinforced plastic, or appellation FRP. Light and hard, non-conductive, high mechanical strength, recycling, less corrosion.
Carbon fiber, carbon fiber), as the name implies, it not only has natural intrinsic characteristics of carbon materials, and both the soft and machinability of textile fiber, is a new generation of reinforcing fiber. Light quality, resistant to impact, helmet is best in carbon fiber.
However, in the choose and buy, although we know the most carbon fibre material, the best weight is light, but because of the good so the price is expensive, the cheapest also want 1000 +, not to mention the.
But even with carbon fibre material, the weight of the helmet will control in about 1250 g, because if the helmet too light in weight, will be affected by the air flow in the process of high speed and make the helmet to the phenomenon, and this time the chin strap can hold your neck, I think cycling is not the way.
Ok, what about how to choose, advice to you is, if you are just normal to work instead of walking, under the condition of normal driving speed is not high, from the perspective of economic material benefit can choose ABS or composite material, of course, the local tyrants can ignore small make up advice.
If likes to go out the brigade, running a long distance short, on the highway, and budget of the few cases of glass fiber reinforced plastic is, can consider the same local tyrants skip...
If you often puma high-speed, like mountain, bending, like on the highway, and sufficient budget, what all don't say, carbon fiber.