I think I saw Rob today on his 690 going down Columbia Street....at least someone on a 690 that I guessed was Rob.
His license plate (not his denture plate or the one in his head) was shaking a bit.
If that was you, Rob... I noticed that the two bolts under my rear fender that connects the black plastic plate/tail-light assembly with the top orange plastic fender thingy will loosen up....from vibration....and also from the tire hitting the license plate when bottoming out....
Aside from that....the bike is an example of Teutonic perfection