Corridor bicycle is a clever concept by Dutch design student David Roman Lieshout. He created a bike that is compact, easy to carry and store. “As cities are growing in popularity, housing is becoming increasingly compact and journeys more local,” – designer says. Corridor bike has a special semi-foldable frame, which allows you to press it flat against the wall and salvage those precious square inches. The project is in its developments stage at the moment, but you can subscribe for updates on designer’s website.