Originally Posted by
JohnJ80
To my knowledge, there is no EPP bike helmet.
Yeah, there are some helmets around that are dual certified to the CPSC bike standard and the ASTM multi-impact skateboard/BMX standard that use EPP. Off the top of my head*, there's the Protec Ace SXP.
There are new technologies coming out to deal with DAI of which the one most in production is the MIPS helmet technology... Scott, Poc and someone else have introduced helmets with this capability. This alone is worth replacing your helmet to get this additional protection.
So far as I know (and I'd love to wrong about this), all one can say is that there are some technologies that the proprietary manufacturers
claim deal with DAI. Unfortunately, when the empirical data was analyzed, so-called 'anti-concussion' helmets for other sports and activities fell far short of manufacturers' ad copy (
1,
2,
3,
4).
*Pardon the pun!