Here is an old thread connected to the steering damper topic. I will refer to the page where I joined in, but it is especially interesting to check the @Claviger solution there.
https://www.r3owners.net/threads/steering-damper-kits-wanted.30849/page-13
I did a radial steering damper for my '14. @Claviger came up with a great solution, in the same thread.
I don't know if this is any help for the new models, though.
https://www.r3owners.net/threads/steering-damper-kits-wanted.30849/page-13
The new Rocket just became a lot more interesting! 177hp sounds like a pile of fun, that's in the V-Max ballpark. A nice classical half fairing and I'd have one.
British mother then ... sounds right!
Edit: Thanks @ozrider, seems this really is an XK120 Jaguar engine, built from 1948. 3442cc and 160+hp!!
What an accomplishment to put this in a motorcycle, 60 years ago.