If the wheel is the leading edge on the front of the chassis does that leading edge need a bumper?
R2 The ROBOT must have a FRAME PERIMETER, contained within the BUMPER ZONE, that is
comprised of fixed, non-articulated structural elements of the ROBOT. Minor protrusions no greater
than ¼ in. such as bolt heads, fastener ends, and rivets are not considered part of the FRAME
PERIMETER.
Per this, I don’t think your drawing is a legal frame.
Needs bumper if that is your starting configuration. But if you started with the wheel retracted, then moved it out, you would be legal… though prone to damage. Be careful doing something like this.
You could also end your frame over top the wheel to provide a legal FRAME PERIMETER for the bumper to attach to while having a large angle of attack.
Thanks for the help and advice. We thought of actually extending our frame perimeter outward and up above the wheel and then attaching the bumpers to the extended frame.