Will Head-Shape Study Get Helmet Makers' Attention?
Of course, helmet manufacturers have known just as well as their customers that not all brain-cases fit the same into a given internal helmet shape, and that disparities between head and helmet shapes can cause undesirable results, such as painful "hot spots," excessive air gaps, buffeting, etc. Its also painfully (pun intended) obvious that money concerns factor heavily in the helmet makers' decisions to not develop and sell a range of shapes. Though I haven't seen a study regarding the issue of reduced crash safety in a helmet ill-shaped to the rider, it certainly doesn't seem to be worth the risk. Perhaps studies such as this one, and market pressure by riders, will someday sway some makers, perhaps the larger ones (looking at you, Shoei!), to get on board.