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R409       *BUMPERS should be passive. BUMPERS must be fixed relative to the ROBOT PERIMETER. BUMPERS may not contain any elements which move during the MATCH or electrical elements.

Compression and flex of BUMPER covers and/or padding materials, and incidental, inconsequential compression and flex in backing and/or fastening systems are not considered violations of this rule.

Similar Rules

Rule R407
R407       *BUMPERS shouldn’t be wedges. BUMPERS must not act as wedges when interacting with other BUMPERS.
Rule R410
R410       *BUMPERS must come off. BUMPERS must be designed for installation and removal to facilitate inspection and weighing.
Rule R404
R404       *BUMPERS must be soft. Hard parts of BUMPERS must not extend more than 1.25in (3.17cm) out from the ROBOT PERIMETER. Only padding (per R402-A), cover (per R402-C, including any coatings or markings), and soft fasteners used to secure padding or cover are permitted beyond this limit. Padding must extend at least 2.0in (5.08cm) beyond any hard parts of the BUMPER. There is no limit on how far BUMPER hard parts may extend inside the ROBOT PERIMETER.
Rule R403
R403       *BUMPER extension limit. BUMPERS must not extend more than 4.0in (10.16cm) from the ROBOT PERIMETER.