I'm guessing mid 70s and a notch or two below the top model since it has a straight gauge 531 sticker. I really dig the fork. It looks like a track crown for round blades that they modified normal legs to fit. I can't handle 52/42 cranks, so I rigged up a 46/30 out of an old mtb crank. Meow meow bell.
by Ok_Summer5472