In the photo, those superbars look awfully WIDE. So I went and measured my Heli-bars, and tip-to-tip they are only 24" wide, installed on the bike. I think that's even about an inch wider than stock. The Flanders bars are either 32" or 34.75", so you may add almost a foot to the width of your bike.
You'll have to lean farther forward to hold those bars, and the wind resistance will go way up. Before you do it, just try holding a yardstick at both ends and lean forward on the bike to see if you like the riding position.
I am interested in your results, esp if you do decide to install the bars.