I took the plunge and bought one yesterday at the IMS show here in the Detroit area. I measure 63cm with a round profile, and the XXL fit perfectly. I've never had a helmet that fit so well all over before. It's just a little snug, but that'll break in after awhile. I'm impressed with the whole package.
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"The problem with Socialism is that you eventually run out of other people's money" _____ Margaret Thatcher