by Andrew G » Fri Jan 04, 2008 9:54 pm
[quote="adrian"]Yes, Jon and Andrew, it's easy to forget how things have come on in the last few years. Mrs A still uses a helmet I bought in 1998.
Shame on you get your wallet out and protect Mrs.A's noggin.
You should replace your helmet at least every 5 years, but preferably every 3, and certainly if it takes a whack - even if it doesn't appear damaged. The core is polystyrene and ages so looses its elasticity, and therefore protective properties as it becomes more brittle. The same applies if they get a whack, the polystyrene absorbs the impact by contracting, like a very firm sponge, but wont relax back to its original state so won't take a second impact as well. Most helmets have a date sticker in them so you know the age, although yours has probably worn off
.
GBs do a Rudy Project for £40 that I use for my commuting (and winter as it has less vents) that's a good buy - doesn't look like a cheapo titfer
.