- Aug 6, 2021
There's a pretty good explanation of G-forces here and what adding a case to a phone does to reduce those forces and the same physics applies to your head inside a helmet. You're not impervious to concussions just because you have a helmet, not all helmets are equal, and just because you didn't get a concussion doesn't mean you didn't get brain damage. Expanding on that, it's also why some people think "no helmet" riders are "safer" - they won't act like their helmet will save them. TL,DR: Ride like you don't have a helmet, be thankful you have one when you need it.