I have 3 old 27” steel frame bikes, one was a drop bar with 27” wheels, one has a flat bar with 27” wheels and the latest, a mixte, has a flat bar and 700c wheels. I was able to stuff a 35mm tire in the mixte frame. These old frames allow the option to run larger tires than found on a typical road bike and make a great candidate for a hybrid build since they are plentiful and low cost. Anyone else running a 27 as a flat bar?