How many seasons can I safely use a helmet?
I ask because I'm getting a used Rocker FF from a friend, the 2010/2011 model (the new ones don't fit my huge head). He has used it for 2 or 3 seasons and says he's had a few bumps but no big hits. I just am curious about how much longer I can expect to use this helmet without worrying about it losing effectiveness. I'm set on buying it cause I owe him anyway for some shenanigans, but I just want to know if I should be concerned about safety next season or the one after that. Anyone have old helmets they still use?