[IronicDeadBird]

Originally Posted by EricH

...have a plate on the bottom of your robot covered in, say, blue nitrile tread and actuated by something so that it drops below your wheels. You could also raise your wheels and put all that blue nitrile on the bottom of your frame instead--same result...

I saw that once wasn't sure if it has an official name that is recognized on Chief Delphi, the team I saw doing it called "gastropod drive" was back on Aerial Assist, in the wild pits of a Utah regional. Does it have an official name?
Anyway those teams must have been really worried about being pushed around.