Airless Tires? Maybe ...
Hankook Airless Tire tests
Forum Discussion
not for me until they've been on the market for at least 10-years with a no-worse track record than std tires in terms of reliability, durability and load carrying capability. all those important 'ilities. :) if they end up being "greener" all the better but that's not the most important factor, not by a long shot.
