While warming my engine last week, I noticed my 18" sissy bar was vibrating back and forth significantly. I goosed the throttle and the vibration essentially stopped. Appears my sissy bar is "tuned" to the engine idle rpms and resonates at that rpm/frequency. Like most mechanical systems there can be multiple resonate frequencies. I placed my leather jacket over the top of the sissy bar which helped dampen the vibration.
Point is: extended vibration of the sissy bar can cause fatigue in the connection hex bolts and lead to failure. I suspect this is a contributing factor in many of the earlier sissy bar bolt failures.
My tip is that you place a coat, T bag, or attach a similar item to the sissy bar to dampen the vibration when you can. I will probably attach my Ultra Tour Bag and leave it on for most of my riding. Hope this tip helps you.
:2thumbs: :2thumbs: :2thumbs:
Point is: extended vibration of the sissy bar can cause fatigue in the connection hex bolts and lead to failure. I suspect this is a contributing factor in many of the earlier sissy bar bolt failures.
My tip is that you place a coat, T bag, or attach a similar item to the sissy bar to dampen the vibration when you can. I will probably attach my Ultra Tour Bag and leave it on for most of my riding. Hope this tip helps you.
:2thumbs: :2thumbs: :2thumbs:
