Snell certifies open-face helmets as well as full-face, so why not modular?
When it comes to helmet safety, Snell is the final word in the US. Racing organizations, whose riders are arguably the most likely to actually put their helmets to the ultimate test, require that Snell certification.
It has long been considered the gold standard of helmet certification, far above the meager DOT standards required for legality. Snell certifies both full-face and open-face helmets but does not certify modular helmets, despite their safety advantages above the fully exposed open-face. So why?