Well I was checking out a couple helmets, and one company (forget which now... I think Z1R) specifically said they use the "north american oval" shape. Another one just talked about being north american helmets, so I e-mailed them to see what shape that meant. I NEED the oval shape, and my head is a solid 24" around. Thanks for the Tips guys. Gary, right now I'm lookin for full face... but I'll keep that in mind if Americade comes around and I'm still in the market!