Originally Posted by
PSPSARGE
To answer a couple of questions at once - room is not a problem if we hang it to the back of the cab (believe it or not, in his company magazine they showed a driver that had a go kart hanging back there).
Looking at downtubes page I thought that the 2008 Downtube IX with front suspension might do the trick because it has a rear fender - spray up the back of you clothes may not be the best when this becomes your only transportation away from the rig.
If you're going to be hanging the bike then you may want to consider a nonfolding 20" bike like the Dahon Smoothhound. Most of the smallness of folding bikes comes from the small wheels. The actual folding part doesn't really make the bike smaller per say, just a different shape (like a crumpled piece of paper compared to a flat piece of paper).