I love Gizmag, and they've presented a challenge. (Actually, Honda presented it; Gizmag is passing it on.) The link shows a Honda concept bike that appears to have no tires, suspension, or drive train. I can think of a few ways that the suspension, steering, and power system might be done, but the lack of tires is driving me nuts. Any of you folks have ideas on the subject? http://www.gizmag.com/bizarre-honda-v4-concept-bike-has-us-scratching-our-heads/10156/"