R404       *Bumpers must come off. Bumpers must be designed for quick and easy installation and removal to facilitate inspection and weighing.

R103       *Robot weight limit. The Robot weight must not exceed 125 lbs. (~56 kg). When determining weight, the basic Robot structure and all elements of all additional Mechanisms that might be used in a single configuration of the Robot shall be weighed together (see I103).

R403       *Bumpers shouldn’t move. Bumpers must not be articulated, relative to the Frame Perimeter.

R410       *Bumpers must be supported. Bumpers must be supported by the structure/frame of the Robot (see Figure 9‑9). To be considered supported, a minimum of ½ in. (~13 mm) at each end of each Bumper wood segment must be backed by the Frame Perimeter (≤¼ in. gap, ~6mm). “Ends” exclude hard Bumper parts which extend past the Frame Perimeter permitted by R408-B. Additionally, any gap between the backing material and the frame: