Vibration in right steering handle

When driving around 80-100 KM/hour speed in fifth gear (sometimes you have to do this
) i have a vibration in my steer, which makes my hand go to sleep.....

After detaching my hand for 10 seconds, it is gone again.

This vibration doesn't happen at higher speeds.

Does anybody has the same?
I only get the normal buzz in the bars. Have you checked to see if everything tight? Like the weight on the end of the bars, the bar it's self or anything else in the area. Just a thought.
hey try this try tightening your controls on the clip ons those three phillip heads on the bottom ,mine did the same thing and my controls throttle actually started to move......i tightened them and the vibration tamed down......all busas it sees vibrate around 4000-5000