On Sun, 10 Oct 2004 16:45:46 GMT, "Bob Burns"
<[email hidden]> wrote in message
<[email hidden]>:
Quoted message said:I'm the OP.
Ooh, so you are :-) After nearly ten years on this here usenet thingy
you'd have thought I might have cracked it by now...
Quoted message said:Actually, the helmet that cracked had no vents- totally solid.
It had a total suspension that kept the shell off my head and was white in
color and quite cool. It was at least as cool in the sun as my new
Specialized Enduro Comp and more comfortable in the rain, which is why I'd
like to find another one. I had it about 20 years.
That sounds like no helmet I've ever seen, but I only started looking
hard at them in the last couple of years.
Quoted message said:BTW, I don't think it "failed". It cracked and prevented any damage to my
head. Did it's job!
A cracked helmet has definitely failed. They are supposed to work by
plastic deformation; foam absorbs negligible energy in brittle
failure.
Quoted message said:I can't find any bike or skateboard helmets which have no vents. What do
y'all do in the cold and rain?
Me? I wear a waterproof hat. I ride a recumbent anyway.
Guy
--
May contain traces of irony. Contents liable to settle after posting.
http://www.chapmancentral.co.uk
88% of helmet statistics are made up, 65% of them at Washington University