Thanks to all for the input. Regarding the material used for the handlebars, it was in regards to whether or not one material was more comfortable than another. I am a newbie trying to find my way in all this. There are so many choices no matter what component you are discussing. My thoughts re the flat bar was that it made sense to me that a more upright seating position would be a bit more comfortable. But I know nothing about frame geometry as it relates to seating position. I've much to learn.