Hmmm, if the helmet is moving on your head I would suggest that you consult the owner's manual in the box with the helmet to read about how to adjust it correctly. I know this sounds stupid, but you may be surprised what you find out in the owner's manual.

In general, the helmet shouldn't be moving around on your head.

Remember, the helmet must stay in place during a primary and secondary impact. This is very imporatant. It is possible my best friend died because his helmet, adequately adjusted and correctly worn (I tried it on 43 minutes before his fatal accident and also specifically observed the fit on his head: It was a new helmet he received that day.) may have been ejected from his head during a severe, primary impact from behind with a moving car travelling at approx. 37 MPH according to the crime scene investigators.

It needs to be adequately tight. Double check that as though your life depends on it, because it does.

If it were a parachute, would you jump it?

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Tom Demerly
The Tri Shop.com

All i got with the helmet is a little brochure that is kind of useless. I will go to their website see if I can find anything out. The shift is minor (maybe 1-2 cms or less than an inch for you guys) but it makes me a little uneasy. Thanks for the reply.

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"which is like watching one of your buddies announce that he's quitting booze and cigarettes, switching to a Vegan diet and training for triathalons ... but he's going to keep snorting heroin." Bill Simmons, ESPN

I assume you found this?

http://www.giro.com/usa/gir_faq_4.html

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"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." -- Bertrand Russell

Remember, the helmet must stay in place during a primary and secondary impact. This is very imporatant.

Do the ANSI and Snell certifications cover this? The local news station ran a consumer test on helmets a couple of days ago. Quite a few of them failed at the strap/buckle connection.

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"People think it must be fun to be a super genius, but they don't realize how hard it is to put up with all the idiots in the world."