Those rent a helmets at the tracks are sped caps. I cant stand them. I cant even stand the helmet I current own. Check out this website. You can score some real nice helmets in the $80 range. And their Snell rated.
http://www.terra-powersports.com/bro...x/sid/1/mfr/26
I just put my own order in for the CS-10 Tattoo Helmet with Grey Graphics.