I had come across a thread soon after I purchased my Africa Twin, but I believe it may have been on the other forum. The poster had complaints about odd vibrations from his AltRider crash bars on his Africa Twin. I asked my wife about vibrations on her AltRider crash bars for her F800GS and at the time she responded no. That she had no vibrations from the bars. Well, that was then. We took a took a trip from Denver to the Ozarks at the end of October to early November. Along the way she noticed her right site AltRider crash bar was vibrating significantly. Upon arrival at the hotel for the night, she inspected it and it looked fine, however it cooled significantly that night and in the morning she discovered this... This is NOT the result of a hit, drop or any kind of physical trauma. The part broke at the weld and simply snapped through. Almost as though it had been cut with a hacksaw, which of course it was not. My wife contacted AltRider and they refused to accept any responsibility for it, claiming it was the "life of the metal" even though only 1 year old. She was told by AltRider that she would have to pay for the replacement, but that they would kindly include free shipping. @OneEarTim would likely know more about this than I, but I have been told by others that this is NOT the "life of the metal," but rather the result of HAZ (Heat Affected Zone) around a weld that causes hydrogen embrittlement and can result in spontaneous cracking. I hope I am understanding this correctly, but from the folks who explained it to me have said, this is not a result of "life of the metal" but a failed part. I tend to NOT believe the claim of "Life of the Metal," but I personally don't know enough I am guessing it is a rare occurrence and wont affect the majority, but something to be aware of perhaps and unfortunately they won't do anything to help you out if it does occur.