Any reason I should take into account a helmet's manufacture date, even if the helmet was never used? My little bro works at a shop in AZ and they have an Arai Quantum/f (same as my current helmet that fits perfect) on sale for $250 that I'm looking to buy, but it's manufacture date is 05/00.

A guy asked a question about my Arai Astral that I'm trying to sell on ebay (my Arai that doesn't fit well) and said that tracks won't allow a rider to be wearing a helmet that has a manufacture date of 5+ years ago. My Astral's date is 01/02, but was just curious in general about the dates.

Thanks.