Hello
I did the one in Murfreesboro TN this year (my first) . I rode my "New" - Old looking British Bike (RE 350 Meteor) from India !

But
I was Dressed for the part with a collared shirt/leather vest and chrome Bota tie ... all the shinny parts of the bike were doing their "Shinny" very nicely .
There were about 40 ridders and we never got above 55-60 mph so it was nice and relaxing !
We did stop at a beer and Pizza place after the ride ... I was with the last 4 folks to leave and enjoyed the day , I'll do it again if the chance comes around.