Help with finding 6 inch pneumatic wheels with a plastic hub

[Ninja_Bait]

We're looking to get controllable pressure (so we can do the fake dropped center for turning) and the cushioning effects of pneumatics, in addition to the additional traction. This is why we have not looked at Colson or the Bead-Lok line, or at semi-pneumatic wheels.

Thanks everyone for their input so far, though!

[Chris Fultz]

If it helps any with your sizing plans,
the 8" pneumatic wheels we have from AndyMark actually measure 7.5".