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Old 08-31-09, 03:41 AM   #1
dmcarstens
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Franken-Trek

I picked up a Trek yesterday off of a Craigslist posting for 25 dollars. After getting it home and doing some research I am having trouble IDing the bike or at least what its made of. I search the serial number and it came up with 1983 412 or late 1982 412. The 412 isn't in the 1983 brochure but the bike I have isnt the same as the 1982 412s. You can tell this by looking at the fork and the dropouts, which on my bike looks similar to the fork and dropouts used on Reynolds frames. The bike has been repainted some time ago it seems and the trek decal was masked but the tubing id decal was not.

It also has a nice miss mash of components.

Suntour derailleurs Blueline front and Cyclone rear (6000 series I believe)
SR Super custom crank, with one sugino mp crank arm (donno what thats all about)
weinmann 605 side pull brakes with shimano600 leavers
Shimano Dura-ace downtube shifters (not indexed ones)
fuji branded velo saddle with a seatpost of a marin (not sure what the deal with that one is either)
The front wheel is a nice 27in alloy but the rear wheel is a steel 26in with 5 speed cog that needs to be replaced along with the disastrous bars

alot of unoriginal parts and but most it seems are of mid to higher quality. I was hoping to clean it up and use it but its a tad too big for me (which is sad considering its a 21in frame, damn im short) so im still unsure what im going to do with it. How often do people look to trade smaller bikes for larger ones? I have a feeling with the painted frame and mismatched components It could be hard to get good offers for it. Any help is appreciated, I am fairly new with this stuff but enjoyable learning experience. Full Gallery





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Last edited by Hobartlemagne; 09-01-09 at 12:55 PM. Reason: added images
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Old 08-31-09, 06:33 AM   #2
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it looks it was a nice bike at one time. it is a real shame what some people do to bikes. not being an expert on older treks my guess would be a basic straight guage Chromoly frame. if your going to ride that bike as is I strongly suggest new brake levers. those levers are in a very dangerous position (because they are not designed for those bars) and you need to have your hand on the very end of the bar to TRY and pull the brake lever.
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Old 08-31-09, 12:50 PM   #3
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Yeah I had planned on putting drops on it, but as its too big for me idk if i'll spend the money
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Old 08-31-09, 02:54 PM   #4
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The frame is definitely early '80s, probably 1984 or earlier. Could possibly be late '70s.

Do you have the serial number? I'd like to look it up on Vintage Trek to see what it is supposed to be. First guess is, it does not look like a 56 cm Trek, rather a 52 cm Trek.
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Old 08-31-09, 03:35 PM   #5
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Yeah I looked up the serial# and it listed it as a 83 built 412. the 412 isn't in the 83 catalog and was discontinued after 82. I figured it was just a late run and still sold as an 82, but its much different to the 82 412's as I mentioned in my first post. I emailed the guy who runs www.vintage-trek.com to see if he has any ideas as to whats up with the 83 412's.
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Old 08-31-09, 08:17 PM   #6
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Can you print the serial number? I know what you said before and I'm not challenging that. I do think you might have the size wrong. You said it's 56 cm, but it looks like a 52 cm. I have had several 52's, I can tell that by eye, usually, but I'd like to confirm. Plus I'd like to see what tubing it is. If its a 56 cm I might want to take the frame off your hands, then you can go look for a real 52.

But I do think that is actually a 52 (20.5"), which means to fit you would need a Trek 19 inch.

Could you please also measure the seat tube length, center of BB to the top of the seat tube? inches are fine, if you like.
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Old 08-31-09, 08:40 PM   #7
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Road Fan,
I don't mean to side track this conversation ( first post let me know if this is inappropriate)
I came across this and am not local to Vancouver perhaps someone is ?

http://vancouver.en.craigslist.ca/va...347535311.html
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Old 08-31-09, 09:04 PM   #8
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Robo, thank you for the info, this seems attractive, definitely!

It's a minor hijack, not a major on, IMHO! I've done far worse on this list and am still standing. But it's really dmcarsten's call, he's the OP.
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Old 08-31-09, 10:55 PM   #9
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Originally Posted by Road Fan View Post
Robo, thank you for the info, this seems attractive, definitely!

It's a minor hijack, not a major on, IMHO! I've done far worse on this list and am still standing. But it's really dmcarsten's call, he's the OP.
Dosn't bother me.

As for the serial its 043356. measurements are:
seat tube- 21in, 53.5 cm
top tube- same at 21in
standover- a little over 31in
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Old 09-01-09, 04:55 PM   #10
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Originally Posted by Bianchigirll View Post
it looks it was a nice bike at one time. it is a real shame what some people do to bikes....
True. The real story is that some people can take abortions like this and restore them to the beautiful, balanced machines they were meant to be!
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Old 09-01-09, 06:55 PM   #11
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Quote:
Originally Posted by Bianchigirll View Post
it looks it was a nice bike at one time. it is a real shame what some people do to bikes. not being an expert on older treks my guess would be a basic straight guage Chromoly frame. if your going to ride that bike as is I strongly suggest new brake levers. those levers are in a very dangerous position (because they are not designed for those bars) and you need to have your hand on the very end of the bar to TRY and pull the brake lever.
It is a nice frame, indeed. The tubing is double butted Ishiwata 022, which is chrome moly, about the same thicknesses as Columbus SL. Reynolds 531 C of the day was a little thinner, lighter, and more flexy.

Dcarstens, thank you for posting the S/N. This is what I wanted to know.
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