I love the title of this thread and had to comment similarly.Nope!! Never seen anything like it. I think you'd know if your helmet was cracked or not, you head would probably be throbbing a little.
Yeah it sounds like a gimmick too me. I've only seen these things on shipping boxes. I wonder if they make one for the human head? A paramedic could take one look and know if the cheese had slid off your cracker! :lol:The Shok SpotR folks tell us that the device is calibrated for the weight of a helmet on a human head,
MMM, I fell off the bike and the helmet hit the ground, should I get a new helmet ....lol