I was recently shopping for a helmet with a friend, and mentioned to the salesman (Sunshine Coast, Qld) that I had a helmet at home; that was 9yrs old. He proceeded to tell me that it was past its used by date, and was dangerous, and I definitely needed to buy a new one! f.y.i. Helmet is full-face bought in UK for Â£150 ($380) worn 3 times never crashed, dropped etc. Is the salesman telling me a load of crap to get me to buy a new helmet?? Do they really 'go off' with time, and 'need replacing every 5yrs'?! :? thanks, Scott (newbie, about to get bike licence, then scooter).