I've done a search for this and read several posts on this but still curious if anyone has a good cause for it and possibly a fix. While riding yesterday I removed both hands to zip up my jacket. We were running about 30 mph and the front end started to wobble slightly but stopped when I put a hand on the handle bars. I tried it again and the same thing...and it gets worse the longer you let it go unchecked. It will do this even at 45 mph. Though there seems to be no ill effects, handling wise, it is a little troublesome to me. This is on a '06 roadstar with less than 3k miles and the front and rear tire were at approx. 40 psi. I do have a tall MS windshield but this was in a residential area with little wind. I was riding two up with a loaded T-bag on the back.

Any new ideas?

Thanks in advance for your input.