This is not an Overreaction on Mythryl: “Is it true that bike helmets “expire”? And if so, how often do I…”

The independent "Bicycle Helmet Safety Institute" says no, they don't go bad just from old age alone. See helmets.org/replace/ But wear-and-tear can diminish them over time (fit-pads inside get crushed, minor drop damage adds up). My approach: when it looks old and ratty, or 10 years (or crash).

helmets.orgWhen Should I Replace My Bicycle Helmet – BHSIHow to decide for yourself when your helmet is worn out or needs replacement, with links to a scientific study and helmet repair info.

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