StringBike - highly unusual string-powered drive train. Their website: http://www.stringbike.com
The Nederlander Bicycle... Hand made in Dronten in the Flevoland province of the Netherlands from customized anodized aluminum parts, it is solidly constructed and precisely balanced, having endured adventurous ascents up to Switzerland's famous Simplon Pass. Its enclosed drive train protects against the elements, allowing the 14-speed Rohloff hub gear system to provide effortless shifting for easy hill climbing or smooth coasting without the fouling of debris and grime. Retails $5,700.