Very useful information here.
Can anyone offer some insight on mine?
Here is what I have so far from what I can tell.
1985 Nishiki 12 speed road bike. 28" Panaracer dual tires, Araya aluminum rims, Sansin quick release hubs, Dia-Compe brakes, Sugino VP crank and Shimano derailleur
Some pictures:
https://imgur.com/a/HOVVx
Thanks!