This morning I bought an interesting Schwinn, and I'm trying to establish its age. All decals except the 4130 DB and "frame built in America" had been removed. 27" wheels, Sakyo clone of Stronglight 99 cranks, etc. Feels a bit heavy with the awful tires on it, but rides nicely all things considered. sort of metallic grey color. Forged drops (?) in back, but w/o derailleur hanger. Anyone have any ideas about the model name?
So, the question is this: it has "aero-style" down-tube Suntour shifters: mount with a single bolt to braze-on fitting on top of the down-tube. I'm sure these were not in vogue (fad?) for very many years, but I don't remember when they were The In Thing. Actually sort of neat in some cases: I have one set in which the two levers are connected, so moving through the gears on the rear shifter causes the front one to move a bit to keep the FD cage centered. Any help? One reason that I'm interested is that I have the same kind of shifters on a DuraAce AX-equipped UniVega I bought from Mark Poore years ago.
Thanks!
Harvey