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09-21
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09-09
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08-21
Racing helmet:It mainly refers to the helmet used in automobile racing. For example, F1 racing, F1 drivers helmet is composed of carbon, Kevlar fiber, polyethylene three materials. Helmets used in F1 m…
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08-21
1. The lighter the helmet, the betterRelatively speaking, the lighter the helmet, the better. But the lighter the riding helmet, the less chance it will pass the national safety certification test stan…
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05-08
01, quantity and adjustmentDetermine the size of the helmet after measuring the head circumference or trying it on. Open the rear adjuster to the maximum when wearing it.02, horizontal wearWear the hel…
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05-08
The modern helmet is mainly composed of the helmet shell, lining and suspension system. Due to the different requirements for the use of various activities, the structure and style of the helmet are ma…
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