I see many posters have said your bike is a Puch or AD. well that's close but not correct.
your bike was made by Styer. the name of the company was Styer,Damlier,Puch.
Styer made low end bikes, mid-range bikes for bike shopes were branded Puch and
top end race bikes were Austro Damlier. in the mid-80s they dropped the AD name
and all bike shop bikes were Puch.

Sears robuck lock
 

I have a old sears and robuck bike lock I'm looking information on

Final product.
https://cimg7.ibsrv.net/gimg/bikefor...e62545a324.jpg

Very nice job with that one, updated graphics to the tune of ~ten years(?).

Really glad to see that you got rid of the Walmart/Schwinn front wheel (though the original saddle WAS quite a piece of work and perhaps should have stayed?).

One interesting thing about these Steyr-built bikes is the considerable length of time that the bikes sold with only minor changes.

The hidden rear brake cable ports are from the more upscale, earlier Puch Bergmeister model, though I can't really say what year yours was built without having the original rear Simplex derailer at hand.
Guessing it's just slightly newer than my '68 Sears TEN SPEED based on the reflectors on the fork blades(?).