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My 1981 Trek 613 build

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My 1981 Trek 613 build

Old 04-14-11, 12:07 PM
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cobrabyte
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My 1981 Trek 613 build

I recently finished building up a long time project. I figured I would share the build as it progressed.

My first "real" road bike was a 1981 Trek 614 and so when I came across this bike I picked it up right away. I wanted to build it up with as many period correct componants as possible, but with some upgrades for daily use.

this is the bike as purchased:


1981 Trek 613 by (cobrabyte), on Flickr

It was in very good condition, and the componants were good, but not great...mostly SR and Suntour Vx stuff. I decided to start collecting higher end Suntour and related peices. I wanted to avoid any Shimano stuff, and tried to stick with a majority of the componants to be Japanese, in keeping with the original specs of the bike.
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Old 04-14-11, 12:24 PM
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I started out with a new headset (Tange Levin) to replace the old stock micro-adjusting HS... and had a nice 27" fixed gear wheelset (formula hubs to Sunrims CR18 27" rims), so the initial build was going to be a fixed gear. I got a good deal on a used set of Sugino Mighty Cranks, sans chainwheels, so I picked up a NOS 47t drilled chainring on eBay to get started. I replaced the Tange bottom bracket with a sealed unit 107mm spindle to get the correct chainline. I also got a new Nitto stem and Moustache bars from Rivendell. Harris cyclery carries 27x1.25 Michelin World Tours for cheap, so I went with those tires for the time being. I also got a new honey Brooks B17, a NOS SR seatpost, and NOS Dia Compe drilled levers with gum hoods from one of the LBS's in my area. I have slowly dwindled down his stock of NOS early 80's era stuff I had kept the original Dia Compe calipers from my first Trek, and they a perfect match after some cleaning. Another LBS helped with the initial build and provided the MKS pedals, leather covered toe cages and straps, 19t Surly cog too.


1981 Trek 613 by (cobrabyte), on Flickr


1981 Trek 613 by (cobrabyte), on Flickr


1981 Trek 613 by (cobrabyte), on Flickr


1981 Trek 613 by (cobrabyte), on Flickr


1981 Trek 613 by (cobrabyte), on Flickr


1981 Trek 613 by (cobrabyte), on Flickr
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Old 04-14-11, 12:31 PM
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Looks sweet... Nice build

Even though my personal preference would be to ride it the way you got it.
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Old 04-14-11, 12:41 PM
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I now set off the get everything needed to do a full geared set up.

At a local swap meet, I was able to score a very good condition Suntour Perfect 6spd freewheel (14, 16, 18, 21, 23, 24) as well as a few other goods for other projects. Ebay was generous one evening and I was able to get an EXCELLENT deal on a front and rear Suntour Cyclone derailleur set. Ebay also provided the NOS Suntour Cyclone bottom bracket, NOS Suntour Cyclone clamp on shifters and cable guide. It took much longer than expected to find a 52 / 42 set of 144mm Sugino chainrings, but I finally tracked some down. Next I picked up a NOS set of Suzue High Flange Hubs, and brought them to a local shop (66Fixed) where I had a wheelset built up with 700c Sunrims CR18 rims (flat, not shiny finish) I also ordered a set of Ruffy Tuffy tires at the shop, been wanting to try these tires for a long time. Michael, the owner of the shop built up the wheels and did an excellent job! He builds really solid wheels, and is one of the best assets to the cycling community here in St. Pete, FL....ok back to the build, I put the bike up on the stand and got to work:


1981 Trek 613 Redux by (cobrabyte), on Flickr


1981 Trek 613 Redux by (cobrabyte), on Flickr


1981 Trek 613 Redux by (cobrabyte), on Flickr


1981 Trek 613 Redux by (cobrabyte), on Flickr


1981 Trek 613 Redux by (cobrabyte), on Flickr

notice how the stamp on the hub lines up with the decal on the rim/ both wheels were built up proper and solid.
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Old 04-14-11, 12:49 PM
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So the past week or so was spent slowly building up the bike to the "final" stage. I very much despise the Shimano style splined bottom bracket and tool, as the removal was a serious pain in the ass, even with the tool clamped into the bb, it still managed to slip a few times while I was attempting to loosen the cups. Once the adjustable bottom bracket was in place, everything else went very smoothly and straight forward. Today was the first commute duty on the new build and it's as nice as I would have hoped.


Vintage Trek 613 by (cobrabyte), on Flickr

Next plan is to add fenders, and a blackburn rear rack along with Kirtland TourPak panniers I picked up from a fellow BF member. Some nice lights may also be added later.

More pictures here: https://www.flickr.com/photos/cobraby...th/5619120285/

Hope you enjoy.
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Old 04-14-11, 02:16 PM
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Chris Chicago
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very pretty bike. the gold chain in the first set of pics is esp nice
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Old 04-14-11, 06:33 PM
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Beautiful! I just converted a similar coffee-colored old Super Course into a similar fixed ride. Love what you did with it.

As for the details, I've noticed hemp twine looks a lot better than cotton twine...
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Old 04-14-11, 06:36 PM
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Very nice, even though I'm not a big fan of moustaches.

What's a "microadjusting" headset?
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Old 04-14-11, 07:37 PM
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Wow, very nice build, Cobrabyte! Simple, elegant.
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Old 04-14-11, 07:49 PM
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Well done Sir!!! Very classy.

Cheers,
Chris
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Old 04-14-11, 09:38 PM
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I like the way you think I'm even gonna ditch my bar end shifters cause the reach to the dt is really easy.
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Old 04-14-11, 09:57 PM
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Very nice.
That bike would look great with hammered fenders.

Well done!
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Old 04-14-11, 10:12 PM
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Beautiful!
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Old 04-14-11, 10:23 PM
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I love the color. And having all new parts arrayed out in front of me before a build is kind of a wet dream I've been having.
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Old 04-15-11, 04:52 AM
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Very distinctive color. I like both versions of the bike. The final build is very sharp. Love those Suzue HF hubs.
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Old 04-15-11, 07:48 AM
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I love that color too! I've yet to find a Trek in that hue, they always seem to be silver/gray (which is nice too...) Great build cobrabyte!
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Old 04-15-11, 11:06 AM
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thanks for the comments all!

@roadfan: a "microadjusting" headset is the ones that came on most early Treks; here's a closeup pic...

1981 Trek 613 by (cobrabyte), on Flickr

@sailorbenjamin: hey twin! I like your high range gearing....that gives me some ideas, I have been toying with the idea of swapping out the bottom pully cage on the rear derailleur with a longer Suntour VxGT one I have, and going up to 32t on the freewheel.

builds are never "done" lol
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