Fun gallery of wild Dutch bike designs at the Designhuis exhibition. My favorites: the Giant Downtown, with integrated handlebar lock; a bike you <a href=”’>steer by shifting your bodyweight; a system that connects two bikes to make a 4-wheeled vehicle; a dinky little recumbent trike; a slick carbon recumbent; a rowing-action pullcord drivetrain; and an internal-drivetrain suspended recumbent.