[treffk]

It all depends on your design, drive train and what you are hoping to accomplish for this years game.

For example my students have calcuated that in motors alone we are going to have about 50 pounds of weight with their current design.

If you are just wanting a defensive bot you wouldn't need nearly as many motors or an elaborately designed chasis. If you are wanting to climb or shoot depending how how you design these systems they could also use motors and gearboxes thus changing the weight for every single team. It's difficult to predict an average weight because everyone's and every teams thought processes are different along with their skill sets.