maxweljames

I think it's a combination of things, first, as flitecontrol mentioned the foam is different. The styrofoam collapses and doesn't re-expand, so by design it's a one shot deal. Why don't we use the more flexible foam as in sports helmets? Well, at high speed that foam may compress as the helmet is under air load, there by causing the helmet to fit improperly. The styrofoam is more rigid and can withstand that type of force, it maintains the helmets structure and proper fit to your head. And finally, it's a liability for companies, pretty much any piece of safety equipment has the same statement from the manufacturer. Child seats, in an accident, even if no harm was done they recommend replacement. Safety glasses, take an impact, get new lenses. Fall protection harness, you fall, you either get a new harness or have that one recertified. It's all about the liability.

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Maxwel James
2003 Honda Rebel

Shadow Shack

For that answer and many more we now go to sport and MC helmet expert Ben Rothleisberger...

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