finally got my new helmet a medium size roof desmo similar to shark evoline in that it is a jet and a full face . this modular design has the chin bar rotating all the way to the back of the head the idea being avoiding buffeting by the chin bar over the top of the helmet. you can see on the net many video about it it is a great idea and the reason I bought it.
I found it to be right for my head shape (58 medium) well made rather lightweight with a quick ratchet clip for closure .
however not much better than regular jet for wind noise in any config.
I would recommend it without a doubt it is just what I expected in terms of flexibility
and priced at $500 .it is not DOT certified in canada but meet the euro certification as a jet ,and full face and that is good enough for me.
for any captain thinking about it I give it overall a 9 out of 10