Thread: Trek 91x with unreadable serial number
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Old 12-21-20 | 12:22 PM
  #20  
jPrichard10
Vintage Trek Black Hole
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From: Portland, Cascadia

Bikes: 1976 Merz' Tourer, 1986 Strawberry, 1978 Trek 910, 1982 Trek 950, 1982 Trek 720, 1981 Trek 510

Originally Posted by IsleRide
^ ^ ^ ^

Good info. Remember seeing a number on a bike I owned.

Interesting that it might have been practice to leave the number exposed. Or, not. Maybe inconsistency in production?
Yeah, I know it's not a 1973 or a 1960 Trek 😆 and 73 and 60 make sense for head lug angles.

For those asking: yes it's Columbus. The decals are still apparent on the seat tube and fork blade (barely) and the steerer tube is rifled at the bottom. If I hadn't seen that white dove on the seat tube, I would have never inquired on a $300 ad for a bike in this bad or condition.

I'll have to check for fork tab reinforcements.
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