A helmet is the most important part of motorcycle riding and it should be taken care off well for its longevity. They are getting expensive day by day and a good ISI/DOT mark helmet can cost you anywhere from 2,500 to 25,000+ depending upon the brand, graphics, and weight.
However, like everything else, helmets also have a defined shelf life, regardless of how frequently you use them. You will be surprised to know that every helmet has a life of 4-5 years only before it should be replaced with a new one. It doesn’t matter if you have not worn it even a single time during that period.
The reason behind this is the material quality of EPS (Expandable PolyStyrene foam) that is responsible for absorbing the impact on crash, continues to degrade by time. EPS is located between the outer shell and the inner comfort lining of the helmet. So older the EPS, the lesser protection it will provide in a crash.
Also, if you mange to drop your brand new helmet onto the ground by mistake, it is highly advisable to discard it even if it looks alright visually because the absorbing material losses it strength after the first impact and may not be able to protect your head effectively in an event of a crash in future.
Nowadays, most branded helmets come with manufacturer instruction and recommendation on when to replace them, so read the label and user manual carefully.
If you wish to see how complex and rigorous helmet production is, here is a video for it.
Cover Image: jsbikesaccessories.blogspot.in
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