I en annan tråd gav jag länk till en liten cykel med stora hjul. http://clou.at och sedan fann jag det här http://www.gizmag.com/go/3603/
Ett nytt slags däck som liknar det Anders Brage skriver om.
The Tweel promises performance levels beyond those possible with conventional pneumatic technology. The first commercial applications of the Tweel will be in lower-speed, lower-weight vehicles such as the iBOT mobility device and Segway's Concept Centaur. Designed by Segway-inventor Dean Kamen, the iBOT mobility device has the ability to climb stairs and navigate uneven terrain, offering mobility freedom impossible with traditional wheelchairs. Additionally, Segway's Concept Centaur, a prototype that applies self-balancing technology to a four-wheel device, has also been equipped with Tweel to increase its performance potential.
Beyond these first real-world applications, Michelin has additional projects for Tweel on construction skidsteers and a variety of military vehicles.
Minns att Popular Mechanics för en 40 eller 50 år sedan beskrev ett militärfordon för träskmarker, det hade mycket breda mjuka däck. :) Så fler har tänkt till.