A Rocket Club
"Club" versus "association" or "chapter" or whatever, wordsmithing aside... I happen to have helped create a regional, Franco-Swiss, Rocket III-only Club last Sep., the 
RCE (with Tomo and a couple others as innocent "Honorary US Members" 
 ). Pics of our first two outings were posted here a couple of months ago.
 
Starting a club from scratch and running it takes enthusiasm, dedication and real --and occasionally frustrating-- 
legwork : communicating, scheduling (weeks ahead of time!) and organizing meetings, soliciting and eventually getting firm commitments to hotel reservations or other group events, record-keeping, producing and retailing tee-shirts ... road books... stickers... and other 
identity-building gadgetry (incredibly successful, I found out)... involving local Triumph dealers (or at least making the effort)... causing some newbies to realize that comeradeship might take more than just one common mount and a quick pint of beer... causing some others to accept that club leadership 
 should NOT boil down to a supplier-to-customer relationship... smoothing the inevitable differences out (social, regional, pillion-driven, distance-constrained, riding style-related, etc.) and, above all, helping 
detect, recognize and promote common affinities (an enduring 
sense of humour being foremost), 
beside or beyond RocketIII ownership.
 
(Something I have learnt from THIS forum , BTW)
 
It's been fun, thus far
 .
 
To sum it up: If you are seriously longing for-/would like to join- a regional Rocket III-only club and there ain't any around, JUST MAKE IT HAPPEN... 
CREATE IT 
 
Jamie