Perhaps I am a big chicken or a little paranoid, but I get freaked out riding a bicycle on a main road. Where I live there is only one lane in each direction and they have no shoulder at all. It is tight just with cars on the road, however because it is in the trees and not as populated it is a popular riding area for bicyclists. You come up and over a hill and there will be a guy in bike attire and helmet right in your lane. I give them as much space as I can but I have seen times where traffic doesn’t get over and two cars pass each other while passing one of these cyclists. It makes me cringe, I always fear the bike guy is going to end up in the ditch with a pretzel for a bike and spine. This is why I don’t ever ride on these roads. I talked to a guy I met who was one of these bicycling enthusiasts, he told me horror stories about friends who ended up with broken bones from riding on these roads. The questions he didn’t answer was, so why do you do it? To me, if there is a high chance of injury and death from your hobby, you need to pick another hobby. Perhaps it isn’t actually the hobby but just like in life, if it isn’t safe or wise you should probably pick a different road!