Yes, I have a Kuryakn setup on my Rumbux bars. Got the info and idea initially from the ever-helpful EricV on this forum. I called Kuryakn directly before finalizing things to make sure all would work together. Their stuff is a bit complicated to work through, in terms of which parts work with each other. The only chrome piece was the clamps, since they don't make the correct size in black...oh well. Pics are attached and part numbers listed below. Don't believe I'm supposed to put Amazon links on the forum, but all three components are available on Amazon, so a quick search will bring them up. Total cost for the setup is about $240. I like them pretty well. The angle isn't perfect, and the left sits a tad lower than the right, because of the difference from left to right in the crash bars. Still, they do what they're supposed to, which is to give you a break on a long ride. Overall, I'm happy with them. Here are the 3 items:
Kuryakn 1002 Magnum Quick Clamps, 1" chrome
Kuryakn 7571 Longhorn Offset Footpeg Mounts (these come with 1.25" black clamps which must be switched out with the 1002 clamps above)
Kuryakn 7562 Trident Dually ISO Pegs with male mount adapters