Quote:
Originally Posted by Laurentiu
well, there's solid tires and there's airless designs of tires (a.k.a. "tweels"), totally different things.
We have to look out for these in the future when they manage to outcome some of their drawbacks (such as vibration &noise)
  
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Are they planning on sealing up the sides of those tires? I could just imagine getting 5lbs of mud stuck into the side throwing them way out of ballance.