Wore out three sets of tires already!
I bought it a few years ago all original, but built it up for a comfortable ride. I still have all the original parts, the S2 rims.Your '83 has some parts that my '83 never had, I take it you're more concerned about function than originality! What kind of crank is that?
Not sure on the cranks, will check them out and let you know l.