[QUOTE=BluesDawg;5615320]46mm Nitto Noodles are great for me. That is wider than would be suggested for my narrowish shoulders, but I like the way they feel.QUOTE]
+1. At 5'8" medium build I use 46" Noodles on my go-anywhere bike and 44" on two other bikes. I notice the difference for just a few minutes when I change bikes. I'm pushing past the conventional bar width formula, but find it feels good and "opens up the chest" for breathing.
When I first started riding in the early 80's, the Univega I started with came standard in my middling frame size with 38cm bars.... probably thought to be more "aero" at the time.