Bicycle tire that fills itself with air as you ride on it Aug 25, 2011• By Abraham• (via Bag of Nothing) Share on Facebook Ready for Another One?Give us a few more minutes and we'll make you laugh, cry, gasp, or ache... Guaranteed! A brutal look at the families and fights of Irish Travelers Cat with an owl face Get the best of 22 Words in your inbox Like 22 Words on Facebook comments Stephen says: I would assume that eventually the pump tube breaks open as you use your breaks. Chris says: Yes, but does the pressure keep going up until the tyre explodes? Abraham Piper says: No, it stops when it’s full, according to the video. Stephen says: In the video he mentions that the pressure quits building after a certain point. Barista girl says: The video shows him stopping after a certain point, it does not show the pressure stop building as he continues riding. Perhaps it is still in development. The concept is quite nice, but what happens when, as Stephen surmises, the tread wears down and the pump tube wears out? does the tire begin to leak air? Obviously you will need to replace it but how soon after the pumping mechanism is rendered inoperable, and how long will it take to wear that down? It seems to me that, self pumping or no, this tire will have the same, if not shorter, operation length as a regular bike tire.