WHEN TO REPLACE YOUR BIKE HELMET?
(Taken from the SNELL foundation’s website):
The five-year replacement recommendation is based on a consensus by both helmet manufacturers and the Snell Foundation. Glues, resins and other materials used in helmet production can affect liner materials. Hair oils, body fluids and cosmetics, as well as normal “wear and tear” all contribute to helmet degradation. Petroleum based products present in cleaners, paints, fuels and other commonly encountered materials may also degrade materials used in many helmets possibly degrading performance. Additionally, experience indicates there will be a noticeable improvement in the protective characteristic of helmets over a five-year period due to advances in materials, designs, production methods and the standards. Thus, the recommendation for five-year helmet replacement is a judgment call stemming from a prudent safety philosophy.
(The same explanation as above, but written in English):
You should probably replace your helmet every 5 years if you do not encounter any hard knocks or hits. If you have a stack and hit your head, replace the helmet, even if it shows no significant damage.
The glues and other materials to hold your helmet together will degrade and 5 years is the cutoff for safe helmet usage. However, sweat, cosmetics, hair gel, hair spray and other factors will further break down your helmet.
The Australian Sun is more powerful than most areas above the equator and will break down a helmet even faster!
Don’t forget that all the exhaust, nature’s elements, rain, wind, and….MAGPIE’s will degrade a helmet!
If your helmet even makes it to 5 years, please replace it!