It's interesting you mention shell composition in light of this comment in the webBikeWorld article:
Some motorcyclists have been deliberately choosing helmets with thermoplastic shells recently; a choice based on the Motorcyclists magazine report on helmet impact absorption (see the wBW Motorcycle Helmet FAQ page for more information). My feeling is that one should study the matter carefully before making a crucial decision of this nature; just because a motorcycle helmet has a thermoplastic shell doesn't necessarily mean it will absorb impact in the safest way possible.
My conclusion is it's not something I can easily use to decide for or against a helmet - the standards are going to be more useful for my decision and ECE is certainly good enough for me.
no subject
Some motorcyclists have been deliberately choosing helmets with thermoplastic shells recently; a choice based on the Motorcyclists magazine report on helmet impact absorption (see the wBW Motorcycle Helmet FAQ page for more information). My feeling is that one should study the matter carefully before making a crucial decision of this nature; just because a motorcycle helmet has a thermoplastic shell doesn't necessarily mean it will absorb impact in the safest way possible.
My conclusion is it's not something I can easily use to decide for or against a helmet - the standards are going to be more useful for my decision and ECE is certainly good enough for me.