9" Diameter Wheels

[dmorewood]

We had originally designed our drive chassis to be fit with the Andy pneumatic wheels. We're now looking at these wheels on a drive train compared to the defenses and thinking that they're rather small. We have 6 8" diameter wheels from earlier this wheel, but would prefer to find even bigger wheels. Our design constraints dictate that the biggest we can go as of now if 9.75" diameter with a 2 inch width. Does anyone know where to buy wheels between 8.5-9.75" in diameter and that have a 2" width? We need 12 if that's possible.