http://superbumper.com/faqs/
It's what I have on mine. Kat & Jo convinced me that something on the back was a good idea. And frankly, if a VX gets rear ended, it's going to be totaled--that's a repair nobody wants to touch. So I have protection from frame damage, whiplash, and it may actually keep people from tailgating as close...i don't honestly know!
I actually don't see the original Superbumper (that I have) but they do have the spare bumper which does the same thing, minus the mount for a receiver hitch. Lifetime Warranty; it gets destroyed in an accident, you send it back with a copy of the police report & they ship you a new one free.