This is a great thread!

A friend was downsizing and gave me her Nishiki Competition, which she's had since the early to mid '80s. She got it new, but the serial number is CI00803, which, according to T-Mar's database, makes it a 1979 model. So who knows?

In any case, it's double butted Tange tubing, no braze-ons for cables, shifters or water bottles, Suntour GS drop-outs, Suntour Cyclone derailleurs, DiaCompe brakes (I replaced the Suntour Superbe levers with DiaCompe ones), fluted and colour-coordinated Sugino crankset with drilled chainrings, Nitto stem, Cycle Pro Champion bars and KKT Pro Vic II pedals. It has lovely lugwork and is a surprisingly stiff frame. I don't have a set of scales, but I'm guessing low 20s.

Sadly, at 57 cm it's a tad too big for me, and the gearing is getting pretty tall for these old knees: 23-14 freewheel and a 44-tooth inner chainring. Maybe a wider freewheel and a taller stem (with a nod to Grant Petersen) would make me enjoy this even more, because it's a very nice riding bike.