Took my bike in for the 600 mile service this week. They indicated that there was two TSBs for the SD. He indicated that my bike did need the handlebar, and showed me how I could make them move ever so slightly, perhaps also explaining the slight vibration in the bars. The second TSB has something to do with the speedometer cluster and that they are actually going to replace the whole unit. I wasn't able to get him to clarify what exactly the reason was for this change. He said the parts will be in next week, so I will keep you posted.