Technical Q&A – When to replace a helmet
Dear Lennard,With the unfortunate event at Paris-Nice, I thought I would ask. Ihave read in various forums, that helmets should be replaced every-so-many-years (Lance Armstrong's book, for example, places this number at five years).However, most citations I see are closely connected to a helmet manufactureror a bike store. Setting aside the obvious ("because it was in a crash"), why would Ineed to replace an otherwise good helmet? Also, does this imply a "shelflife" for helmets (say, I find a deal on a new old stock Air Attack)? Isuppose what I'm after is, do helmets need to be replaced like