Originally Posted by
datlas
If the outer shell not cracked, inner EPS core not cracked, and all attachment points are strong and intact, I believe the helmet should be ok. This is nearly impossible to “prove” so if you will sleep better at night just get a new helmet.
Reminder helmets work mainly by slowing down the sudden deceleration of head/brain on impact, and this happens by allowing the EPS to crush. So based on this, I do expect helmet should be ok.
^ This. The only possible damage from the described drop would be to the shell. If the shell is OK, then the helmet is fine. Of course if this somehow resulted in a crack to the foam then the helmet is junk, but that is MOST unlikely.