I once owned a BMW F650 Dakar - was probably the smoothest single cylinder bike ever (but also the heaviest with the worst suspension ever) - this bike had bar ends
While surfing the net one day I saw the Yamaha Dakar rally bikes had bar ends too.
I used to do quite a bit of cycling and all my bicycles had rubber inserts in the end of the handlebars to dampen vibration
My hands are not lekker and I suffer badly from carpal tunnel issues
This got me thinking ...
So while prepping my 525 for Amageza 2015 I got a set of BMW Dakar bar ends and chopped them down and modified them to fit on my 525
There was a noticeable difference in "buzz" through the bars into my hands, especially on long boring straight roads
So I kept those bar ends when I sold my 525 and fitted them to my 500 ... and it works for me ... it does not eliminate the buzz completely but it does reduce it substantially ... and they are as hard as fuck so they work very well in protecting the ends of the bars when you bliksem the bike down