Just wondering how a set of these would look on the L, I don't think they would be good for performance.
http://www.automedia.com/Future_Tire_is_a_Tweel/dsm20050201mt/1
http://auto.howstuffworks.com/tweel-airless-tire.htm
http://www.automedia.com/Future_Tire_is_a_Tweel/dsm20050201mt/1
http://auto.howstuffworks.com/tweel-airless-tire.htm