I commute on an early-80s steel Nishiki road bike that my husband converted to single speed. It's a mixte so I can ride it in a skirt, although I seldom do because the wind always blows the skirt in my face. It is a tiny little frame -- way too small for me -- but it was pink and $35 and exactly what I wanted. I put a Nitto Technomic stem and Nitto Albatross bars on it, and a Brooks saddle, and it is by far my most comfortable bike. It was originally a touring frame so it carries racks and fatter tires easily. I used to commute on a hybrid and this is far more practical and comfortable.