I don't know anything much about this but looks like a good show to go to?
http://www.claphamclassicevents.co.u...rnationals.htm
Its on the 4th July and...
It says....
"The UK Roadster Nationals are open to all convertible and open top cars including Veteran, Classic, Custom, Americans and Hot Rods manufactured before 1980. Replica vehicles manufactured in a pre 1980 style are also welcome. "
so i think a Sportster should qualify?
Any of you been before?