I had a front end shimmy. From 80kph down to 60kph on decell, it was really bad. The rear would still track true, but the front bars would really vibrate. From 100kph down to 80 it was there but not so bad.
Still under warranty but as the dealer is a good distance, did some troubleshooting using the history files on this forum. Did a dynamic balance and spot on. Checked rear alignment... everything looked ok.
Finally took it to the dealer today. The tyre was "out of round". They replaced it under warranty and no more shimmy. I found it interesting that it would dynamically balance within 5 ips and still shimmy like it did. The front tyre was the stock Metzler.
Much much better ride and I'm happy again.
