We took our robot for a spin thru the woods today 
http://www.youtube.com/watch?v=ffUzzx9RrP8
We have full custom gear boxes and 12" wheels.
From the looks of it, you have 2 pneumatic wheels per side. How well does it turn on carpet?
We havent tried it yet, but we have a pneumatic mechanism that drops the front of the bot down onto 2 onmi wheels (not on in that vid) that the bot turns on
Im sorry for being a downer, but why would you go outside with it? Those leaves will crush up into almost a powder when you drive on then and will get sucked into the fans.
I realize that that looks like alot of fun (My other half would have done it for that), but why?
Id just give it a once-over for leaf bits
Well, we built this thing to basically be like a tank, we just wanted to test it in an extreme situation xD.
also, the electric parts are in a lexan box that shields it from the outside.
(we are a small team so we have all worked on every part of it so we just wanted to have some fun with it)
Great! That was smart. I always think there is something cool about having a small team too.
Also, another thing i might mention. This bot currently is only running at 1/4 to 1/2 the power it will be when we are done. (we are waiting on gears for two of the motors and 1 of the motors on one of the sides isn’t always working (maybe faulty speed controller))
We’ll go off-roading with you! Go pneumatic wheels!
Update: driving over 7" bump