This is an old thread, but I wanted to quickly post that I got the Rivendell German bike mirror for my bike (with North Road-ish handlebars) and the mirror is not really made for these types of handlebars. I tried to install it in several different positions and usually had a good view of my hands or my butt, but not the road. Now I have it installed actually hanging down, below the handlebars. I will do a longer ride tomorrow and see how it works or if I have a 'knee strike'.