The Helmet Standard Protecting Me Was Written When I Was a Kid
The Helmet Standard Protecting Me Was Written When I Was a Kid DOT FMVSS 218 hasn't changed since 1974. Minor amendments in 1988. That's it. The federal standard governing the helmet I'm required by law to wear is older than decades of my riding. It predates everything we've learned about traumatic brain injury in the last 40 years. It has no rotational impact testing. What That Means Linear impact testing measures how well a helmet absorbs a straight-on hit. Rotational impact testing measures what happens when your head twists on impact. That twisting motion is what causes diffuse axonal injury – the kind of brain damage that leaves you breathing but not there. When you go down, your head doesn't hit square. It glances, it slides, it rotates. The injury mechanism DOT doesn't test for is the one most likely to destroy you. ECE 22.06, mandatory in Europe as of January 2026, includes oblique impact testing for rotational forces. The research showed i...