Assuming NO impacts/crashes that would justify immediate replacement, how often do you replace your trail helmet? I’m also assuming trail style helmets that aren’t hard shell (i.e. POC Tectal, Oakley DRT5, Giro Montaro, TLD A2, etc).
I tend to use mine between 150 and 200 days per year and sweat lots so I tend to replace them about every 3 years because that “felt” about right to me for ages. I have no idea how quickly helmet materials degrade with sweat, dirt and UV though.
Do you replace less or more frequently than that and why?