Hmmmm...the L/XL(no tag)wedge Bell polaris wedge helmet I got from Joe B weighs in at just under 3 and a half pounds. With the visor I made for it(double layer and fits perfect!) That is a lot different than "six pounds" regarding something on your head.
I would very much doubt the issue of the shells of these helmets becoming weaker in any way that matters over the time of their 'vintage'. I AM a hang glider pilot and I can damn sure tell you that Icaro's and Charly's were NOT made for or rated for DH skateboarding. And how many people 'care'!?
Yep, you will LOOK cooler if you are doing stand up...but I do not think there is a better shape(once visor replaced)for street luging than the good ol Polaris. I LOVE mine already and it makes a HUGE difference from the MX helmet i used before.
So...I have been watching ebay and have found two others which I bought as back ups. One looks nearly brand new.( The visors are almost perfect! Too bad they are useless for luging! That is okay though, once I got the pattern down I cut a stack of PC visors.) One helmet is a bit smaller(med) in case my lady or? decides to do this again. I have already gotten her to give it a try once(how many of you have gotten your lady on a luge...PERIOD?!?) Ha! I bet Skateluger has. he probably won't even talk to a girl unless she rides a street luge(am I right SL????)

Which makes sense to me, if it is true!
As far as the DOT rating? A helmet has it or it does not. It does mean something. I would rather roll in a DOT MX helmet or a 'vintage' polaris wedge DOT hyelmet than sacrifice the DOT for nearly $300 of helmet made for HANG GLIDING AND PARAGLIDING. And Bell Polaris is not less of a helmet for being used in the snow...DOT ratings are arrived at by a helmet surviving a certain impact test. And anybody who has spent much time in snow KNOWS that it hides rocks...big rocks and one can have your name on it . At least on dry streets you can SEE what you are going to hit often. Last time I wiped out the KNEE tweak had me not able to ride for about a week(leg to stiff to bend). So you never know what will happen? Helmets are not 'all there is' but it is very nice to have a helmet that lets you see when you are laying down! the bell Polaris, as far as i know, is IT.
Anything on your head is better than nothing on your head I guess. If you look long enough you will find a decent wedge helmet. I have three now (two on the way from ebay actually)when just about a month ago I had none and wondered if I ever would find one. Thanks to Joe B. that changed. I'm never going to get rid of that helmet even if 'just' because of the cool way I got it and the cool guy who made it happen when I needed one. Thanks again Joe.
This last week I have been concentrating alot more on my DH board skills. I like doing that too just not as much as street luge. I don't wear the Polaris for that. But the Polaris is perfect(and looks very racy too, if you ask me!)for SL.
