Help with Vintage Trek

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11-13-12 | 08:17 AM

JJEEFF

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Joined: Nov 2012

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Help with Vintage Trek

I just picked up a vintage Trek and am having a hard time determining frame age. Serial # is not standard (5B6C51). The only thing I can figure is that I am reading it wrong due to a lite stamp and it may be (E5B6C51) ((first letter may not have made impression on steel)). This would be a Feb. 1976 frame. This seems unlikely as I have not heard of a frme older than Sept of 1976. Furthermore, the frame has the headbage glued on and not screwed and all components match the 1980 412. In addition, the hubs are stamped 8/80.

Specs:
Serial#: 5B6C51
Size: 25"
Tubing: Ishwata 022
Wheels: Rigida 27" blue label with gyromaster hubs (rear procompe freewheel)

Any thoughts.

I am assuming it is a 1980 412 with a messed up serial #.
Only other explanation is a very early 1976 frame built up to 412 specs in 1980.

Thanks

Last edited by JJEEFF; 11-13-12 at 08:21 AM. Reason: update

11-13-12 | 09:58 AM

jeirvine

Senior Member

Joined: Sep 2011

Posts: 3,372

Likes: 598

From: Baltimore MD

Bikes: '72 Motobecane Grand Record, '72 Gitane tandem, '72 Raleigh Super Course, '73 Raleigh Gran Sport, '73 Colnago Super, '76 Fiorelli Coppi, '78 Raleigh SBDU Team Pro, '78 Trek 930, '81 Holdsworth Special 650B, '86 Masi GC, ’94 Bridgestone RB-T

Pics might help. Funny - I just picked up a 1980 412/414 frame. Measuring the chain stay length might help ID the year it was built. They did longer stays on certain years.

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