Originally Posted by
WrenchDevil6
There was talk in the industry back in the late 80's of the possibility of helmet manufacturers changing over to LBDs in order to increase the integrity of their product. This idea was squashed due to the fact that the LBD made the helmet almost bomb-proof and would ultimately result in a large reduction in helmet sales. It would have aided riders immensely but would have crippled the helmet industry so they decided to stick with the IMD (Inferior Manufacturer Decal) sometimes called ISD (Inferior Stock Decal)... depends on which coast you're on.
False. The idea behind a helmet is that is it soft enough to absorb most of the impact of a crash. The use of lbd's would've made the helmet completely rigid and thus useless in a crash, as all impact energy would be transferred to the skull. They later discovered semi-lbd's, but they were expensive to manufacture, essentially killing the idea of lbd-powered helmets.