BIG Tires

[jdaming]

What am I not considering about using huge tires (like these)?

The robot being designed is not going under the low bar. The plan would be to use the long kitbot chassis but instead of 6 wheels just have 4. For ease of use I would assume we would still mount the gearbox in the center and drive two center sprockets that are then connected to the sprocket on each wheel. Assume that we could space everything appropriately. Would we have turning issues? Doesn't seem like it.

I realize that the distance between the inner and outer plate would have to be widened to accommodate the wider tire. What other challenges would we face?

Any idea how to attach a hub/sprocket to a wheel like that?

Any thoughts on why this wouldn't be a good idea from a game sense? Seems like it would make many of the static obstacles much easier while giving more ground clearance. I know this is rather out of the ordinary and nobody is set on it, but I am trying to come up with good reasons not to do it.