So I have the frame number ( A21960) and engine number (P24579) but I noticed on the identification portion of the site it says it should have a riveted tag on the frame mine is stamped but I could be misunderstanding it any one who could clarify?

One more

Just A Few Quick Pictures

Oh I'm definitely hooked!!! The bike looks like so much fun . I already started looking for parts I remember asking my dad about it a few times when I was younger. He always said the only reason he stopped riding it was because it needed a head gasket. Unfortunately it's sized up but I'm inthe works...

Perfect thank you both ! Many more questions to come found a ace 100 in my father's barn looks pretty cool !

Is there a site that I could look up when my ace 100 was made ?