Bell Vortex TT helmet - very light & very aero helmet. I raced with this helmet while at University. It came with a visor attached, but I removed it - I still have the visor though if anyone wants it. It has been tested in the tunnel with & without the visor & it’s faster without. Depending on a riders position this can be a faster helmet than anything else out there - including the Giro Advantage or the Uvex TT helmet. Looking for $70 shipped.
http://i234.photobucket.com/albums/ee206/pritchet74/x002.jpg
http://i234.photobucket.com/albums/ee206/pritchet74/x003-1.jpg