For the bikes that fall though the crack between Vintage and Evolution. (about 1975-1976) For example the first year Yamaha Monoshocks, and 76 Honda Elsinores were advanced in their time, (however brief) but are illegal in Vintage, and get crushed in Evolution. To keep this class fun, and even we are going to scrutinize the entries pretty closely -

if you have a question about whether you bike qualifies, just ASK. This is for these specific models, not regular Vintage Bikes, and obviously not the newer Evo Bikes.
And this list is incomplete, so bear with us. Here's where we are now:

the Trans-Am Class is for the following two-strokes

YES

NO