When a helmet becomes outdated - I usually sell them at a swap meet as it has some worth to somebody that can use for a another purpose. I look at it this way - if its out of date most likely so is the technology that made it - time for a new one..
I get a new bike helmet whenever I get a new bike. It always amazes me how much the helmet and bike technology have improved. I had a Bell back in the '80s that was top of the line. The Last Arai I got made it seem like I had a concrete block sitting on my head, the new ones are that much lighter.
