8" Pnumatic Wheels @ Andymark soldout

[MrForbes]

They're heavy. The steel hubs have a tube on one side, I think it's 1-3/8" id. I was pondering whether we could weld a small steel hub onto the tube, and bolt a common robot sprocket to the hub. Or maybe press a longer tube into the existing tube. Or see how they work as unpowered wheels, going over the defenses. It's all conjecture at this early stage.