Hi, I would like to upgrade my current hantlebars as they seem to be a bit narrow for my shoulder width: my shoulder width is 45 cm whereas the handlebars are 39 cm wide (center to center tubes). I want to buy a Nitto B135AA randonneuring handlebar, but I'm not sure what size to select: 45 or 48cm? I would think 48cm would be ok as the bars flare, so one needs to subtract about 6 cms to get the width between the brakehoods. Maybe it would result in a bit too wide fit in the lowest position. Any ideas / suggestions?