I saw this link from another post here, and delved in deeper. I love the classic looking Cafe and 50s 60s 70s look before every bike became either Harley wannabes or Teenage Mutant Ninja Turtle rides.
It's a Hong Kong site, so much of the text is not english, but the pictures are all you need... Most all if not all are thumpers or classic twins.
[glow=red,3,300]Street Retro Bikers Club: [/glow]
http://www.srbikers.com/bikersbike.html