What's with Wiggo, Cav and the rest of the Brits riding odd looking aero bikes in the Olympic RR? Don't they have to ride their Sky team issue Pinarellos? The aero bikes may be functional, but they are not esthetically pleasing to look at.....That bar/stem is especially hideous.
They have to ride what their Olympic Committee decides they'll ride. It's got nothing to do with trade teams (like Sky). As for their bikes appearance, it's beautiful if it gives great numbers in the wind tunnel and performs well on the road. "Pretty" isn't a variable in any aerodynamic equations.