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Hard to say too much about fit, since the helmet Herbert and I wore was a plaster mold. However, I can say the front ventilation is awesome. The front piece is removable as you can tell from the pics/video. According to John, removing plug did not slow the helmet down, but did allow great ventilation. Also, as John stated in prior emails, the helmet is designed to work with both type A(flat) and type B(curved) backs. For both Herbert and I, the RP Wingspan tested much faster than competitors L, G, and S...I mean A, B, and C : )
Watching John and the gang from Rudy Project work was pretty awesome.
I was able to inspect one first hand, oddly enough, at an Xterra two weeks ago. RP was there with a big tent. The helmet had similar fit features and padding to my RP road helmet which is the nicest fitting plushest helmet I've ever owned (better than my old Giro's for sure). The headband was adjustable, and the front plug was chrome and was removable. The back of the helmet was also faired in, unlike my Giro aero helmet.