Here's the instal of my replacement GSG moto crash knob, which is made in Germany for the GSF1250 with the lower fairing. (http://www.gsg-mototechnik.de/) One side was trashed after my crash. but I guess the fact I am able to ride my bike again means it did its job. A nice product and good service from them.
The knobs are joined by a thick pipe as well as frame mounted.
The crash knob has a push on cover that is replaceable
The plate was bent from the crash, but in bending, it absorbed impact forces that would have otherwise damaged the bike