Helmets have shelf life? I knew that you should replace them even after a minor impact. I am also going to the show in Toronto. What day are you going? I am headed there on saturday... (if weather permits)
Richard
I'm planning to go on Saturday too, pretty close to the time the show opens (I'll have to check when that is). I went at opening time a couple of years ago and it was great - no crowds until after lunch. We should meet up there. As for the helmet shelf life issue, like John T said, the EPS foam breaks down over time, and won't distribute the force of a hit properly after 5 years. The Arai website says that their helmets are good for 7 years from the manufacture date, or 5 years from when you first wear it. By "weather permitting" do you mean your bike's still on the road? - better crank up those heated grips.
fjrcanuck