In a controlled manicured evenly graded urban environment, a simple minimalist SS commuter would work just fine... but for anything else, it has the potential to be a liability.

In the rural canyon where I live, "flat" does not exist, and there is always some wind blowing, and many times it's howling... so a SS is completely out of the question. In all of my years here I have never... repeat, never... seen a fixie on the roads...

...because anybody with one would be walking it!

Greg