Bought this frameset from member robk131313. Used this build to make use of some extra parts I had. While stripping the original powder, I discovered the Serial # KZI4G0001, indicating this was frame #1 from 1994.
Frame & Fork: Haro Group 1 Zi
Grips: A'ME Tri
Brakes: Dia-Compe Bulldog rear caliper, Dia-Compe Tech7 lever, Odyssey Slic Cable
Stem: Schwinn 1"
Rims: Weinmann 20x1.75 dm-30 hoops
Hubs: Front - GT, Rear - Primo
Tires: Tioga Comp III (new style)
Cranks: Redline dual-pinch Flights
Chainwheel: Redline X, 43t - Freewheel - 16t Dicta
Seat: Viscount Dyna, Suntour SPC
The thread here, discussing the serial number find:
From the 1994 Haro Catalog: