It depends on whom you ask! People here in C&V live and breathe bicycles, and we appreciate many qualities a bike can have, including workmanship that is better than it needs to be for the designated function. Yet there are people who are "into" cycling to lesser degrees who might admire or remember one bike or another. And there are also people who barely ever get on a bike and might be aware of only a few names. With that last category, you might ask what the most famous bike brand is. In the US, folks might say Schwinn, and in Canada, I guess it would be CCM. And the analogous Italian person is like to say Olmo or Bianchi.