A Colorado engineer has come up with a new tire design. Not just another new tread pattern but a whole new approach. Instead of the usual threads encapsulated in rubber he has gone for the latest in carbon nano-tube technology. Result is a tire that mounts directly to the rim and requires no tube or air pressure to give it shape. The nano-tubes can be adjusted to give different ride characteristics, much like adjusting air pressure, and are covered in the rubber coating with the tread pattern. Not available as of yet but I am sure it will not be long before they are filtering through into the bike shops. In the meantime have a look at the video. If nothing else they look cool.