Hi, I've researched some on shark helmet too, first top of the line is "bongo" but since its french product and chin guard is too high (some people like that style) to see the low part of the vision. Is my first ques and accessory on the parts are not available... sheilds and etc.
So, I come down to x-11 or spec 1r I'm still thinkin...
"Bongo"? Sorry...don't think I quite understood what you were sayin.
If you're lookin for somethin about the X-11 or the Spec1-R, they both flow air really well. Cool designs, too...but I think Suomy edges out the Shoei in that regard.
Both have great quality. I've wrecked in a lower-end model Shoei, and it held up fine. I'd use 'em again. I havenb't heard anything bad about the Suomy, so I wouldn't have any probs trusting them either.
Hope this helps ya.