You could also get an ace, aermacchi, AJS, ariel, atlas, BMW, boss hoss, brough-superior, BSA, buell, crocker, cyclone, DOT, douglas, ducati, emblem, excelsior, flying merkel, anyway there are many many more there were even some pushrod hondas--------------------------willie buchta
just a note in 1990 with the pushrod class there was no blown class although there was a blown class in production class
HOPE TO SEE YOU ALL AT BONNEVILLE