Designboom says this City Recumbent bicycle design is on the shortlist of possible winning entries for their Seoul Cycle Design Contest 2010.
This recumbent by designer Jean Davignon is “a fat tire composite and aluminium recumbent bicycle with a horizontal pivot twin bar fork link steering handle.” The boom breaks apart to facilitate transportation. Internal hub gearing with a chain tensioner.
It looks like the design has some kind of sleeve to guide the chain? I don’t know that I’ve seen that before on a bicycle.
More at Design Boom. Lloyd at Treehugger wonders if recumbent bikes are appropriate for city cycling. For urban use, I’d suggest adding some other practicalities, like fenders, racks and maybe lights. H/T to Wes in