I attended the BSA Club Rally in Toronto, Ohio yesterday. They do this in June and August. Nice people running the show.A very pleasant place to ride your bike on the grounds and the nearby countryside. The grounds are very good and reasonable for show attendees, Camping, Vendor and 2 entry's only $30 Its not huge and Its got plenty of places for camping, and one for camping/vendors. One day attendance just $5. If you like BSA or Triumphs or watching trials events, its well worth doing.
For me there was precious little Japanese bikes or parts. Maybe more would be coming Saturday. However, Its a long haul from Columbus if you are looking for Japanese stuff