Narrow width bars were common back in the day, usually 38 or 39 cm. I'm a little guy & don't mind since they are about what I need anyway. Wider bars are available, measure your shoulder width from the bump where your arm begins over to the other side & that dimension is a good place to start. Bars will have the size marked on them & they come with different amounts of bend, also newer ones are available with anatomic bends. Bicycle Swap meets are a good place to find cheap parts. Don