I have a 2011 R1200GS, I had my sync done at 5K about a year ago, I have 16K on it now, over that period I could tell that the vibration in the H bars was coming back. It was off about .5 to one side, took about 3 minutes and the vibration is back to nothing. Thanks for all the info you guys have put on the site for us new guys. Also Capital Cycle has the Twin Max for about 85.00 on ebay, thats cheaper than going to the shop for 5 minutes.