Vintage Sugino Mighty Tour Crankset. 170mm. 110mm BCD. Polished,

Vintage Sugino Mighty Tour Crankset. 170mm. 110mm BCD. Show Polished....
They're  "almost" show polished, if I used them for show, I'd get all the dings out. But they're pretty darn good as is. From 2' away, they look amazing.
Chainrings have been drilled by hand. Or, probably on a drill press, and they're not perfect. (I didn't do it. I'm a perfectionist. I Found them this way. )
Date codes are A-1 and A-5. Not sure what exact year, as all the Mighty series cranks I've seen begin in 1976 with "F," (GHIJ etc.) I've never seen an A code. If you follow the online code list, "A" would put them at 1971. And I don't think they were made that early. The other A code would put them at 1981, but that's for the AT cranks, not the mighty series, so, whatever. They're 70's, early 80's.
Chainring bolts and chrome steel dust caps are a little crusty.
Middle chainring has some pretty bad chain scuffing.
Triple chainrings with spacers for the third. 52, 46, 34.  Dump them and throw a single on it for your BMX
Pedal threads and square taper in excellent shape.
Check all the pics and ask questions before you buy.