Snapshot

The critical characteristics of the helmets are -- protection of head, clear vision through the visor, quick release chin strap and appropriate ventilation (in case of full face helmets). The outer shell is made from Acrylonitrile-Butadiene-Styrene (ABS) or Polypropylene or glass fibre plastic which is hard in nature. The inner side of the shell is expected to provide cushion to the rider and is made from regulated density concussion padding.

Helmets are used as protective headgear for two-wheelers. The typical motorcycle helmet has an inner layer of polystyrene or polypropylene foam and an outer layer made of plastic, glass, and other synthetic fibres. The chief purpose of a helmet is to absorb the impact of a crash and thus prevent primary injury to the brain, rather than preventing skull and face fractures. The outer shell prevents sharp objects from puncturing the skull and also protects the inner liner upon contact with the road. The inner foam lining is crushed the following impact, thereby increasing the stopping time and distance of the helmet. This, in turn, limits the accelerative forces on the brain, reducing the chance of primary brain injury. The helmet consumption is mainly driven by the sales of two-wheelers in the country. It also has replacement consumption.