Originally Posted by prabbit
I put a zip tie around a couple of vents in the rear of my Giro helmet and then attached the blinky to the zip ties. You're right, a blinky belongs up higher so motorists can see it more easily. It's the same principle or reason that automobiles started putting the brake light up at the motorists eye level about fifteen years ago.
Is this safe? If you get in an accident, might this just drive the blinky into your head? Helments are designed to spread out and absorb an impact. Attaching a blinky where it was not intended could end up concentrating the impact into a small part of your head. I'm not pretending to be an expert, but I'd be interested in the opinions of other people who might know.
I did try this once. It helped to have the light where it could more easily seen. And it is much less likley to come off of my head than my bike. Having a helmet designed to hold a blinky sounds like a really good idea.