A helmet review I wrote for another site:
I tried on a GT Air at my local dealer, surprisingly, they were quite helpful and found the right innards to get a great fit. The helmet was fitted correctly but it was tight for the first few weeks (roughly 30 hrs/week of ride time), then it loosened up and now it is secure but comfy. Within the three shell sizes there are different size liners that are available to give a very good fit.
I told the sales guy that I could go on line and buy the helmet for a lot less but I would rather give him my money if he could help me on the price. He talked to his boss, then came back and offered me the online price plus shipping. Sold, my money stays in the local economy. (My negotiated price was in the still expensive $480 range.) I chose the solid white color(?) for visibility. Other solid colors include highway stripe yellow and '14ES RED. The solid colors reduce the expensive helmet's cost by ~$100.
I find the helmet to be a little better than middle class on weight, it is the quietest helmet I have ever owned, the venting works great, doesn't buffet and my communicator speakers fit the ear pockets. With the face shield closed it sounds like you are in a fish tank when you talk. In cooler weather go for a ride then open the vents, you will definitely notice how the vents let in air as your face and scalp freezes. I can find positions between the face shield and windshield where I have almost total quiet in the helmet, it's amazing. The face shield opening seems to be a bit bigger and gives better visibility than the Arai that I had been wearing.
If you wear glasses, the glasses will need to have a very minimum ear piece curve or they will be hard to put on. Years ago I bought some quality sunglasses with nearly straight ear pieces and they zip right on with no interference. The helmet has a built in Sun Shield that slides down. I don't mind it and use it sometimes during sun rise and sun set when looking directly into the sun. Pillion hates it because of the curving bottom edge, think fighter pilot helmet sun shield shape.
The back edge of the helmet is cut with a rising curve which protects your neck by preventing the helmet from contacting your spine if your head is pushed back in an accident. On the other hand the curve lets the wind whistle down your neck. Summer is fine, fall and winter I have to wear something to keep my neck from freezing. There are two pull tabs on the cheek pieces that pull out the liner for a rescue helmet removal should the unthinkable happen.
Now, about how air tight the helmet is... It fogs. Bad. The helmet comes with a pin-lock shield -- use it when it gets cool out. When properly installed it lets me ride with temps around 20º F and it still doesn't fog. The silly slip in air diverter that blocks air from your nose and mouth is useless, lose it. Oh wait, you will lose it anyway 'cause it doesn't stay in place.
Even though it is a big helmet my XL does fit in the side cases and trunk.
Over all I really like the helmet and my dealer made me a great deal after I asked for price relief. There are some little quirks that I mentioned but it's a really good helmet, you're going to like it!
