***Review***
Well I just got back from a 2.5 hour rip.. so far my Gmax 37X Dirk seems good, in an open field above 70mph with a head wind I could feel my right ear start to frost bite... it's about -20C right now... that was the only time I was cold. I did 90-95mph with no wind(tree line 20ft to my right where the wind would have been coming from.) I was still warm.... for the most part I was baking in that helmet. So much condensation that when i stopped at a store to pick up some juice I looked like a Persiate(sp) you know a chinhead from Andromeda.. heh Ummm the googles the oakley's seem pretty good, I did start to fog at lower speeds when I was cooking, but as soon as I hit 25-30mph my glass would defog.
So far, I'd have to say I like this helmet better than my HJC CS-air full face, and better than a GMax 46X. The 37X Dirk is an MX "type" helmet, but you can take off the visor and repalce it with a shield for the nasty nasty cold days, visibily with the shield looks like it would be really really good, there's no solid(as in not see through) boarder so it keeps visibility of the MX style helmet, with no googles. So those of you who like full faces, but want better visibility, this is good for that.
I had the chin curtain installed and the breath deflector, I'd say this breathe deflector is the best one I've used so far(compared to the one in the CS-air and the 46x) The helmet fits quite snug, almost tight on me, but yet is easier to get on and off than the cs-air which fits loose compared to the 37x when on. I do think when it's warmer out I will remove the chin curtain(3 snaps), and when it's colder put it back in.
even though my cs-air is still good, so far i'd say it looks like the 37X will be worth the money in more enjoyable rides, as with cs-air I could ride for about 15-20min and something would fog, then I'd have to lift the shield and freeze my eyes, today is the hardest i think I've ever ridden. WEEEEEE frink, how do you guys do it, I was only out for 2.5hours and I'm so tired i could pass out, who ever said snow-mobiling isn't exercise can go jump off a cliff with out a sled

My heart rate is just starting to go back down... hehe