[EricH]

Originally Posted by Mike Martus

Caution!

Bumpers have specific materials, specifications and mounting rules.
It is very important to read the section of the manual that covers this.
Violations will not pass inspection.

Hey... there may be changes for 2008, who knows?

Unless you make custom bumpers, in which case you need to have them fit in the box and 120 pounds (or whatever it is) weight limit and you may as well make them an integral part of the robot. You still need to make sure to have them qualify as bumpers, though.