Removing game pieces from Trailers

[The Megan 2207]

Originally Posted by ExarKun666

You can't reach outside your bumper zone but if you dumped it, and were extremely close to the opponent bot, I think, that's allowable, it's in the animation so why not

Which rule says you can't reach outside your bumper zone? I've read the Game rules and the Robot rules a few times looking for this, but all I have found is rule <R11> saying that the robot must stay within 28x38x60 inches. Rule <G32> states that contact outside the bumper zone is illegal, but if the piece of the robot that extends outside the bumper zone (such as a dumping mechanism) does not make contact with another robot or trailer, wouldn't it still be legal, given the robot remains within the specified dimensions?