slowfoot said:i ride a stock specialized roubaix.
sometimes i feel the bars are too wide and make me significantly less aero.
my hands are wider than my shoulder width by 2-3 inches.
i cannot find info on the "ideal" bar width besides "what's comfortable". i don't think narrower bars would be uncomfortable.
The so-called conventional wisdom on what the handlebar width should be for any given rider has changed from the recommended width in the past, and it will probably change again at some point in the future -- that is ONE reason why finding a consenus is difficult.
Also, the riding conditions can influence whether you opt for a different width handlebar.
In that regard, wider (than "normal" for an individual) bars can be a good thing if the roads you ride involve a lot of "climbing" ... but, not 2-to-3 inches wider!
N.B. The length of the STEM will affect the way the same bars feel -- not that you should retain them, but as wide as YOUR current pair may be, they probably won't feel as uncomfortable if you were to change the stem for one that is shorter.
Regardless, if the bars feel to wide, then changing them to a narrower handlebar is something you should consider.
BTW. If you decide to shop for a narrower pair of handlebars, you need to know that the SHAPE + DROP & REACH may vary from handlebar to handlebar unless it is the same model from the same manufacturer; SO, decide if you like the shape of the drops or if a different shape might be better, too, when you are buying/ordering a new handlebar.