Riding in Europe, there is just no question, helmet laws are so strict so that the option of riding without one does not simply exist (unless you're a HA member and get a doctor's permit). I too ride with a open helmet in order to meet the unwritten "cruiser rules". However, a friend of mine crashed a few years ago with an open helmer and polished the pavement with his face - doctors had to do a lot of work to screw teeth and jaw and face bones back together. He now rides with a full cover helmet from Bandit - matt black with black visor- and looks like a mean s-o-b! Check those helmets out at www.bandithelmets.com. I think that is the way to go if you want hard-core looks and safety...
Ride safe!
Ride safe!