Make a life sized Batmobile Tumbler and Batman themed Halloween display

Step 7 Front Tires, Treads and Assembly

Four 40" diameter (10.00-20) truck inner tubes (purchased used for $13 each on eBay) make up the front tires (two tubes for each).  I bought a fifth inner tube on as a spare just in case.  The front wheel (garbage can lid and ring) goes in the center hole of one of the inner tubes.  A framework was of pvc pipes held together by bungees was used to create the width of the tire.  The "T" fitting meant that it had three sides, but I would have preferred an "X" (which they don't make) for a more stable four spoke design (something I plan to modify in the future).

The next picture illustrates the second inner tube placement with a smaller piece of pvc pipe to wedge it into place.  Then the assembly is rolled up with a sheet of Platon (cut to size) like a burrito and secured with gaffe tape and a small bungee.  The seam goes on the bottom of the wheel to hide it.