Unknown Trek (No Pictures)
11-14-15, 09:15 AM
#26
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531, nice stuff. What are you plans for this?
11-14-15, 10:21 AM
#27
Keener splendor
That's a portacatena dropout: Portacatena
11-14-15, 12:40 PM
#28
Broke With $$$ Hobbies...
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@The Golden Boy @OldsCOOL
Not sure what I will do with it yet.. I still need to get a job to support this bike addiction
When I start a build progress thread, I will tag you two in it.
Not sure what I will do with it yet.. I still need to get a job to support this bike addiction
When I start a build progress thread, I will tag you two in it.
11-14-15, 01:15 PM
#29
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@The Golden Boy @OldsCOOL
Not sure what I will do with it yet.. I still need to get a job to support this bike addiction
When I start a build progress thread, I will tag you two in it.
Not sure what I will do with it yet.. I still need to get a job to support this bike addiction
When I start a build progress thread, I will tag you two in it.
11-14-15, 03:38 PM
#30
Old fart
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Some 700 series Treks came with Cinelli BB shells.
Later, they used Cinelli shells with a Trek logo:
Finally, they used the investment cast Trek shells with the integral cable guides under the shell.
And for what it's worth- there are 700 series bikes made with Columbus tubing... IIRC- TX770.
Last edited by JohnDThompson; 11-14-15 at 03:50 PM.
11-15-15, 07:26 AM
#31
Extraordinary Magnitude
Join Date: Aug 2009
Location: Waukesha WI
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Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
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No, 7xx frames of that era were always Reynolds, and 9xx frames were Columbus. First digit indicated tubing type: 3 = Ishiwata 025, 5 = Ishiwata 022, 7 = Reynolds 531, and 9 = Columbus. Second digit indicated frame type: 0 or 1 was "Sports-Touring," 2 was full-on touring, and 3 or 5 was racing. Later, it got messier as 4nn and 6nn models appeared, 170 was Reynolds 753, and 7nn and 9nn started being used for Asian made TIG welded frames, and 3nn and 4nn for all kinds of stuff built to use up tubing and lug stock before dropping domestic production of steel frames.
Vintage Trek Gallery - Rob Hardin's 1977 TX770 Steel Road Bike
This is one of the TX700 bikes made with Columbus tubing. The TX700 appears in the early brochures as being available only with Reynolds 531 tubing. However, several TX700s with Columbus tubing have been reported. Trek called this model the TX770. At least some of them were special ordered from Trek.
EDIT:
It seems everything about the TX770 goes back to that Vintage Trek entry. But I find this exchange interesting:
https://www.bikeforums.net/classic-vi...rek-tx770.html
The one on vintage-trek is a 77. Maybe it's still just called a 700, but with Columbus tubing?
Vintage Trek Gallery - Rob Hardin's 1977 TX770 Steel Road Bike
Vintage Trek Gallery - Rob Hardin's 1977 TX770 Steel Road Bike
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Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Last edited by The Golden Boy; 11-15-15 at 07:49 AM.
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