Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

Tubing questions about late '80s Schwinns built in Mississippi

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Tubing questions about late '80s Schwinns built in Mississippi

Old 07-26-21, 01:22 PM
  #1  
rustystrings61 
Senior Member
Thread Starter
 
Join Date: May 2013
Location: Greenwood SC USA
Posts: 1,872

Bikes: 2002 Mercian Vincitore, 1982 Mercian Colorado, 1976 Puch Royal X, 1974 Allegro No. 76, 1973 Raleigh Competition, 1973 Raleigh GS, 1971 Gitane Tour de France and others

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 653 Post(s)
Liked 843 Times in 452 Posts
Tubing questions about late '80s Schwinns built in Mississippi

Friday I spent a whopping $15 on this poor neglected '89 LeTour -




- which I am planning to mothball until next year's Clunker Challenge, because I have already over-indulged in this year's edition. The tubing decal at first blush leads me to think this is built of plain-gauge True Temper 4130 -




- but it feels really, really light. I do understand, though, that a 26.6 mm seatpost in a seat tube with a 28.6 mm diameter means I'm looking at roughly a .9 mm wall thickness, and traditionally seat tubes are single-butted - but the stated 1989 catalog weight for this bike is 25 lbs stock. The 1989 catalog description is "True Temper Full 4130 Chrome-Moly Frame."

The 1990 catalog describes it as "True Temper Double Butted Chrome Moly," and also gives a weight of 25.1 lbs with a 26.6 mm seatpost.

So - are they the same frame? Are both '89 and '90 double-butted tubing? Please help me, this is what we call a "splinter of the mind," and it will quietly gnaw at me.
rustystrings61 is offline  
Likes For rustystrings61:
Old 07-26-21, 01:28 PM
  #2  
pastorbobnlnh 
Freewheel Medic
 
pastorbobnlnh's Avatar
 
Join Date: Oct 2005
Location: NH Mountains NW of Concord & Mid-GA Coast!
Posts: 11,979

Bikes: Snazzy* Schwinns, Classy Cannondales, & a Lonely '83 Santana Tandem (* Ed.)

Mentioned: 108 Post(s)
Tagged: 0 Thread(s)
Quoted: 870 Post(s)
Liked 626 Times in 353 Posts
Sorry I can't answer your tubing questions.

But egad! Look at the teeth on the top of the large chainring! Thank you for rescuing this poor, abused, neglected and dishonored Schwinn LeTour! My hat's off to you RS!
__________________
Bob
Dreaming about riding in NH's summertime while enjoying the GA coast for the remainder of the year!

Thanks for visiting my website: www.freewheelspa.com




pastorbobnlnh is offline  
Old 07-26-21, 01:37 PM
  #3  
rustystrings61 
Senior Member
Thread Starter
 
Join Date: May 2013
Location: Greenwood SC USA
Posts: 1,872

Bikes: 2002 Mercian Vincitore, 1982 Mercian Colorado, 1976 Puch Royal X, 1974 Allegro No. 76, 1973 Raleigh Competition, 1973 Raleigh GS, 1971 Gitane Tour de France and others

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 653 Post(s)
Liked 843 Times in 452 Posts
Originally Posted by pastorbobnlnh View Post
Sorry I can't answer your tubing questions.

But egad! Look at the teeth on the top of the large chainring! Thank you for rescuing this poor, abused, neglected and dishonored Schwinn LeTour! My hat's off to you RS!
Yeah, looking at those teeth makes me suspect baby's seen more than her share of bar fights.
rustystrings61 is offline  
Likes For rustystrings61:
Old 07-26-21, 06:01 PM
  #4  
3speedslow
Senior Member
 
3speedslow's Avatar
 
Join Date: Oct 2010
Location: Jacksonville, NC
Posts: 9,110

Bikes: A few

Mentioned: 114 Post(s)
Tagged: 0 Thread(s)
Quoted: 1880 Post(s)
Liked 816 Times in 518 Posts
Set aside the frame comparison for a second and look at the components. If they are the same level then the frames could be of the same type butting.

Can you zoom in on the 90 cat. Pic and see just what the tube decal says? Market word play by Schwinn is a real thing.

Good save regardless, the Schwinn true temper frames are nice riding machines!
3speedslow is offline  
Old 07-27-21, 08:05 AM
  #5  
rustystrings61 
Senior Member
Thread Starter
 
Join Date: May 2013
Location: Greenwood SC USA
Posts: 1,872

Bikes: 2002 Mercian Vincitore, 1982 Mercian Colorado, 1976 Puch Royal X, 1974 Allegro No. 76, 1973 Raleigh Competition, 1973 Raleigh GS, 1971 Gitane Tour de France and others

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 653 Post(s)
Liked 843 Times in 452 Posts
I may have figured it out, but I am not positive. Schwinn catalogs list 1020 frames through 1982. The 1983 catalog says 4130 chrome-moly and the 1984-85 catalogs list double-butted 4130 chrome-moly main tubes, chrome-moly stays, hi-tensile forks. The 1986 catalog specifies True Temper T1 double butted chrome-moly and a Tange hi-tensile fork, and the 1987 and 1988 catalogs list the same, but drops mention of the stainless dropout faces first listed in '84.

The 1989 catalog simply says True Temper Full 4130 Chrome-Moly Frame, but I suspect it's the same stuff as before. The fork goes from being a Japanese hi-tensile Tange to being a Taiwan-built Spinner chrome-moly unit, and it is the ONLY Spinner fork listed in the Schwinn spec sheet. The 1990 and 1991 catalogs revert to describing the tubing as True Temper double-butted chrome-moly, with an unnamed chrome-moly fork for '90 and a Schwinn-labeled chrome-moly fork for 1991.

Based on all that, and the consistent 26.6mm seat posts used from the 1986-91 switch to True Temper double-butted tubing listed for every other year, I think it's just badly labeled double-butted tubing.
rustystrings61 is offline  
Old 07-27-21, 08:20 AM
  #6  
3speedslow
Senior Member
 
3speedslow's Avatar
 
Join Date: Oct 2010
Location: Jacksonville, NC
Posts: 9,110

Bikes: A few

Mentioned: 114 Post(s)
Tagged: 0 Thread(s)
Quoted: 1880 Post(s)
Liked 816 Times in 518 Posts
I’m satisfied!

Nice detective work.
3speedslow is offline  
Old 07-27-21, 02:09 PM
  #7  
rccardr 
aka: Dr. Cannondale
 
rccardr's Avatar
 
Join Date: Jul 2009
Posts: 6,921

Bikes: Bob Jackson, Wizard, Pegoretti Duende, Merckx ProSLX, Pelizzoli, Cannondale ST, Schwinn Tempo, Davidson Sport Custom, Canyon Endurace, Richard Sachs, Davidson Discovery

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 1716 Post(s)
Liked 1,574 Times in 663 Posts
Originally Posted by pastorbobnlnh View Post
Sorry I can't answer your tubing questions.

But egad! Look at the teeth on the top of the large chainring! Thank you for rescuing this poor, abused, neglected and dishonored Schwinn LeTour! My hat's off to you RS!
Suspect those are W Cut teeth to assist in shifting.
__________________
Hard at work in the Secret Underground Laboratory...
rccardr is offline  
Likes For rccardr:
Old 07-27-21, 02:21 PM
  #8  
bikemike73 
Senior Member
 
Join Date: Mar 2016
Location: North of Boston
Posts: 643

Bikes: 1973 Schwinn Sports Tourer plus a " few" more :)

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 152 Post(s)
Liked 117 Times in 96 Posts
GREAT SAVE !!!

First thing I would do is see if the seat post moves and take it out.

Then find some evap-o-rust and spray and soak it it.

Use PB Blaster for the chainrings and BB !!

Good Luck...the best 15.bucks you'll ever spend
bikemike73 is offline  
Likes For bikemike73:
Old 07-27-21, 02:49 PM
  #9  
rustystrings61 
Senior Member
Thread Starter
 
Join Date: May 2013
Location: Greenwood SC USA
Posts: 1,872

Bikes: 2002 Mercian Vincitore, 1982 Mercian Colorado, 1976 Puch Royal X, 1974 Allegro No. 76, 1973 Raleigh Competition, 1973 Raleigh GS, 1971 Gitane Tour de France and others

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 653 Post(s)
Liked 843 Times in 452 Posts
It will be interesting to see if I can hold off on working on it until next year's Clunker Challenge - though I AM trickling Corrosion Block all around the seat post's entry to the frame to infiltrate and free it. It IS stuck. Fortunately the LBS has both a solid bench vise and burly guys who have freed a seat post for me before.
rustystrings61 is offline  
Old 07-28-21, 12:18 AM
  #10  
52telecaster
ambulatory senior
 
52telecaster's Avatar
 
Join Date: Dec 2016
Location: Peoria Il
Posts: 4,181

Bikes: Bob Jackson World Tour, Falcon and lots of other bikes.

Mentioned: 50 Post(s)
Tagged: 0 Thread(s)
Quoted: 1265 Post(s)
Liked 1,012 Times in 555 Posts
I've got one of those and it's currently making a very nice 650b conversion. I needed to dent the inside of the chain stays which I did with a 2" o.d. piece of pipe, a small sledge and an axle fastened in the rear dropouts. It came out beautifully and the bike makes a great conversion. Steering is very quick but you get used to it and as you say, it's quite light and in addition has plenty of braze ons.
BTW, mine was 25 bucks.

Bad pic but you get the idea. I am going to change the bars and levers and put a front rack on it.
52telecaster is offline  
Old 07-28-21, 02:17 PM
  #11  
daverup 
Senior Member
 
daverup's Avatar
 
Join Date: Jun 2019
Location: Michigan USA
Posts: 509

Bikes: A bunch of old bikes.

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 145 Post(s)
Liked 331 Times in 177 Posts
I think the 4130 Le Tour's are nice bikes. Not really light, but not the boat anchors that came prior.
Mine is an 83, a smooth ride on Panaracers.


daverup is offline  
Likes For daverup:
Old 07-28-21, 02:28 PM
  #12  
52telecaster
ambulatory senior
 
52telecaster's Avatar
 
Join Date: Dec 2016
Location: Peoria Il
Posts: 4,181

Bikes: Bob Jackson World Tour, Falcon and lots of other bikes.

Mentioned: 50 Post(s)
Tagged: 0 Thread(s)
Quoted: 1265 Post(s)
Liked 1,012 Times in 555 Posts
Originally Posted by daverup View Post
I think the 4130 Le Tour's are nice bikes. Not really light, but not the boat anchors that came prior.
Mine is an 83, a smooth ride on Panaracers.


nice looking!
52telecaster is offline  
Old 07-28-21, 02:32 PM
  #13  
daverup 
Senior Member
 
daverup's Avatar
 
Join Date: Jun 2019
Location: Michigan USA
Posts: 509

Bikes: A bunch of old bikes.

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 145 Post(s)
Liked 331 Times in 177 Posts
Originally Posted by 52telecaster View Post
nice looking!
Thanks!
I put 15 more happy miles on it yesterday.
daverup is offline  
Likes For daverup:
Old 07-28-21, 08:28 PM
  #14  
ShannonM
Senior Member
 
Join Date: Jul 2020
Location: Humboldt County, CA
Posts: 639
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 293 Post(s)
Likes: 0
Liked 276 Times in 189 Posts
I had a '77 Super Le Tour 12.2 for about 10 years. Not a lightweight, especially with steel Wald North Road bars on it, but man did it ride sweet and look good... that blue is one of my all-time favorite bicycle colors.

I'd expect a full D/B cromoly version to ride just as well, and be a few pounds lighter. (The 12.2s were straight-gauge cromoly main tubes, 1020 everywhere else.)

--Shannon
ShannonM is offline  
Likes For ShannonM:
Old 08-19-21, 07:54 AM
  #15  
denaffen
Senior Member
 
Join Date: Dec 2020
Posts: 243

Bikes: Bianchi Nyala, Bianchi Campione D'Italia, Luxus folding bike, Nishiki Sport, Bianchi Torino, KHS Aero Sport, probably something else around here somewhere

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 105 Post(s)
Liked 169 Times in 85 Posts
rustystrings61 I thought you might be interested, just as another data point, on the sticker on mine (the one that appears to be an 85)


I believe mine was made in the Greenville, MS plant. I think it closed in '88, so I think production reverted to Japan and that's where yours was made. I think.
denaffen is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.