Join Date: Dec 2005
Location: Gold Coast, Australia
I may be able to help here.
I moved the Givi bars from my K6 to L2 - oh great, no vibes.
Dealer had to remove the bars at the last service and "That's odd, it shakes now"
After a week or so I had a close look at the mounts and while they felt tight, the top one was cocked slightly and only the front part of the mount was bottomed.
If you look down from the top, the mount should be near parallel to the frame. Mine wasn't.
Loosen the bolts one side - wriggle until everything is flat, retighten. Repeat the other side. Vibes largely gone.