The original bars on my V11 didn't play well with my arthritis (injury not age related), nor with my recently injured elbow, so I reviewed options.
A fellow V11 owner generously mailed me a set of risers for the handlebar conversion, but i was loathe to drill the top clamp.
I found a set of old BMW K100RS bars for $10 on Craigslist and modified them into a helibar arrangement instead.
It took a sizable investment of time, but I am happy with the result.
Bars are roughly 1 1/2 inches higher than stock clip-ons. A Centauro throttle cable (longer) was needed to raise the position.
The process:
Special thanks to Greg Field of Moto International for assistance with selecting an appropriate throttle cable.