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HELP! Sub1.9kg tt59cm mid90s steel MTB frame ID?

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HELP! Sub1.9kg tt59cm mid90s steel MTB frame ID?

Old 12-31-17, 10:33 AM
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HELP! Sub1.9kg tt59cm mid90s steel MTB frame ID?

If anyone knows what this frame is and could help me identify it, I would be most grateful.

Distinctive (or not) details of the frame:

(1) Seat tube top - is concave, curved in.
(2) Rear brake cable routing - brazed-on noodle on the seat tube.
(3) Seat post binder bolt - is behind the seat tube.
(4) Top mounted cable routing - the shifter cables and the rear brake cable are routed along the top of the top tube.
(5) Head tube - the reinforcement rings.
(6) Rear derailleur cable braze guides - are under the seat stay.
(7) Ritchey rear dropouts - incl flat (vs round) seat stay and chain stay ends.

Measurements:
- Weight (approx.): 1.886 kg
- Steerer: 1 1/8 inch
- Seatpost (approx.): 26.6 mm
- BB (British): 68 mm
- Dropout spacing: 135 mm
- Top Tube (approx.): 590 mm (c-c); 615 mm (effective); 28.6 mm (diameter out)
- Seat Tube (approx.): 435 mm (c-t); 390 mm (c-c); 28.6 mm (diameter out)
- Head Tube (approx.): 110 mm; 36.5 mm (diameter out)
- Down Tube (approx.): 32 mm (diameter out)
- Chainstay (approx.): 420 mm
- Reach (approx.): 460 mm

Serial Number: B99XXXX (B plus 6 digits)

Other (Ir)Relevancies:
- Came equipped with a threaded 1 1/8 inch triple butted (TB) rigid Kona Project 2 (P2) fork.
- Originally from Germany.
- Preliminary discussion: "ID: Sub 2kg mid 90s steel frame - with TB P2 but not Kona?" at Retrobike, incl photos.

Close matches so far:
- Many Scott mid-90s models.
- Biria MX 700, but round seat stay and chain stay ends and 27.2 mm seatpost.

All input appreciated, any ideas or suggestions are most welcome.

Thanks
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Old 12-31-17, 12:10 PM
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I believe there were some rockhoppers/stumpjumpers that were made out of ritchey nitanium tubing. might also be a ritchey frame; those braze ons and the welds look pretty good.

edit:
i take it back, the specialized were routed on the downtube.
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Old 12-31-17, 12:17 PM
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Rocky Mountain... Maybe
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