Hi, I have the detachable back rest on my fxdc.. i also got the sundowner seat which is much more comfortable than stock for passenger.

My wife gets really annoyed from the vibrations in the backrest, i guess it gets pretty annoying... anyone got a solution for this (other than removing the backrest?)...

 

Remove the wife!

 

fortunately for me and unlike many people here, I still Love my wife

 

I used the low back rest no complaints on vibes

 

You could go rigid mount instead of detachable. Vibration is a common complaint about the detachables. So is rattling.