[Cory]

It's not a bumper That is their frame. Bumper rules have absolutely no effect on the frame of the robot.

There is only one possible way it could be deemed illegal-If they start using it to tip robots, or if it is larger than the maximum dimensions.

What that means is that we can stop saying "iit's illegal!" "No, it's legal!" back and forth and leave it for the refs to figure out on the field.