A $40 online classifieds find, in ok shape. Shifters are a bit gummy but still work, needed a chain and a shim for the 21.1mm quill stem (steerer is 22.2mm). I also replaced the seat which was missing its cover.
Weight: ?lbs, fairly light
Frame: 1989 20.5" Tange CrMo double-butted, Iridescent Lilac Smoke colorway. Serial XXXXXXXXX
Fork: 100% CrMo UniTrac with straight oversize taper blades and rack braze-ons
Handlebars: No-name BMX 22.2mm 2-piece (originally DB tapered AL black anodized flat bars)
Grips: Diamondback BMX
Stem: BMX quill 21.1mm stem (originally Tioga T-Bone 22.2")
Headset:
Saddle: ??? in bad shape (Originally Avenir Turbogel Lycra)
Seatpost: Delta DP 300mm
Seat Collar: DB QR
Shift Levers: Shimano Deore II 3x7 SL-MT62
Pedals: Wellgo Plastic HTI-P68 (originally Diamond Back alloy body/cage)
Brake Levers: Shimano Deore II two-finger (F/R) BL-MT63
Brakes: Shimano Deore II cantilever (F/R) BR-MT62
Pads:
Bottom Bracket: Shimano cartridge?
Chain: N/A (originally Shimano HG)
Crankset: Shimano Deore II, 175mm, 46/36/26t FC-MT60
Cassette: ?-28t (Originally Shimano Deore II 7-speed 13-30t check)
Front Derailleur: Shimano Deore II FD-MT62 3x
Rear Derailleur: Shimano Deore II RD-MT62 x7
Hubs: ??? F/R (originally Shimano Mountain LX F/R)
Rims: Araya AP-21 (F/R) (originally Araya RX-7 😔 )
Tires: Specialized Rockcombo 26x1.95" (F/R) (originally Tioga Farmer John Cousin 26x1.95" F/R)
Original catalog specs page
Wheelset: ? (F), ? (R)
spec sheet + some of my measurements
Seat Tube (C-T): 20.5" (521mm)
Seat Tube (C-C): 19.5" (495mm)
Top Tube, Actual: 22.4" (570mm)
Top Tube, Effective (C-C): XX" (XXXmm)
Head Tube Angle: 70º
Seat Tube Angle: 73º
Chainstay Length: 16.9" (430mm)
Headtube Length: X" (XXXmm)
Bottom Bracket Drop: X" (Xmm)
Bottom Bracket Height: 11.8" (300mm)
Standover Height: " (mm)
Front Center: X" (XXXmm)
Wheelbase: 42" (1068mm)
Stack: XXXmm
Reach: XXXmm
Fork Rake: 1.77" (45mm)