Is anyone using inflatable tires from The World Models? I got a set of 5" wheels for my Top Flight giant P-47, but not sure what to use to inflate them. The valves on the tires appear to be made of the same hard plastic the wheels are made of, but they did not come with a fitting to inflate them with. Looking at the pic, you guys think a regular needle for inflating footballs would work? They are great quality wheels, but would need a bit of air in them to support the weight of the plane.

Jesse