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  1. #1
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    Schwinn Heavy Duti fork question?

    I've recently purchased an Heavy Duti Schwinn. I'm trying to figure out what the actual year is. The serial number is on the bottom of the crank housing and it indicates a 1974. The problem is the forks are of the tubular steel type and not what you see in the Schwinn catalogues of that year. The brochures show them with the forged "thin" forks. When did Schwinn start using these forks on the Heavy Duti bikes? It also has an Shimano rear hub with the right s-2 wheels and the made in germany hub up front. No neck serial number and it has the round Schwinn Quality badge and not the long oval "SCHWINN" piece. The frame is the old style cantilever.
    Thanks: Jim

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    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by hk007134 View Post
    I've recently purchased an Heavy Duti Schwinn. I'm trying to figure out what the actual year is. The serial number is on the bottom of the crank housing and it indicates a 1974. The problem is the forks are of the tubular steel type and not what you see in the Schwinn catalogues of that year. The brochures show them with the forged "thin" forks. When did Schwinn start using these forks on the Heavy Duti bikes? It also has an Shimano rear hub with the right s-2 wheels and the made in germany hub up front. No neck serial number and it has the round Schwinn Quality badge and not the long oval "SCHWINN" piece. The frame is the old style cantilever.
    Thanks: Jim
    Does the frame have original paint that says heavy Duti? I only ask because it sounds like the bike has been pieced together with some old and some later parts.

    The forks are definitely from much later. As near as I can tell, the hollow unicrown fork came in around the mid 1980s.

    The round head badge is from much later as well. Perhaps mid 1990s. Does the head badges screw on, or was it glued on? Are there old holes where the oval badge would have been monted with screws, as it would have been in 1974?

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    The badge screws on. The paint appears to be original. There is a bike just like it on ebay now out in Montana. No screw holes where an oval badge would have been. The Heavy Duti is stickers and not painted on. The tires are also tractor cheng lin or something like that.

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    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by hk007134 View Post
    The badge screws on. The paint appears to be original. There is a bike just like it on ebay now out in Montana. No screw holes where an oval badge would have been. The Heavy Duti is stickers and not painted on. The tires are also tractor cheng lin or something like that.
    I'd like to see the ebay link if you have it, please.

    If the head badge is original to the frame, the frame is not from the 1970s.

  5. #5
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    I don't know how to paste a link as I'm using my sweethearts mac. I just put in schwinn heavy duti. It has a red bike lock on it. Starting bid is 49 and buy it now 100 w/ no shipping. Check it out. I've seen several like this since I've bought mine. Mine also has the block letters and not the Schwinn script.
    Last edited by hk007134; 09-07-14 at 06:28 PM.

  6. #6
    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by hk007134 View Post
    I don't know how to paste a link as I'm using my sweethearts mac. I just put in schwinn heavy duti. It has a red bike lock on it. Starting bid is 49 and buy it now 100 w/ no shipping. Check it out. I've seen several like this since I've bought mine. Mine also has the block letters and not the Schwinn script.
    That frame is TIG welded, so it is not from the 1970s. The forged forks stopped in 1983 I believe. The ONLY cataolg pic I can find with staight fork legs is 1986. Earlier that 1986 they were hollow but curved.

    Scroll down to the 14th row, center pic.

    Schwinn catalogs, 1981 - 1990

  7. #7
    Senior Member surreal's Avatar
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    You've got a late 80s/early 90s Hungarian-made SHD. Cool bike, and you don't see'm every day....

    Here's a similar bike, for reference.
    Winter Cruiser Build | Rat Rod Bikes

    HTH
    -Rob

  8. #8
    Senior Member surreal's Avatar
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    PS- Chicago Schwinns from the 70s had the serial on the lower left headtube.... Under the BB, unless it's from before 1953, will indicate an imported frame.

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    Senior Member surreal's Avatar
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    Ps again--- there were also Taiwan-built canti-framed SHDs BITD, as well. Schwinn got really weird in the late 80s/early 90s era. Details are sketchy!

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    That's the type/style of bike I have. Guess I'm gonna sell it. It is a real good original but I'm wanting nice red,black,yellow americans.
    I like the classic Schwinn script with a springer front. Probably sell this one to get a older 60's 70's model(s). Thanks for all the help my bike'n brothers.
    Jim

  11. #11
    Senior Member surreal's Avatar
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    I got your back, Cousin. Heavy Duti Schwinn Frames and Fork | Rat Rod Bikes


    Quote Originally Posted by hk007134 View Post
    That's the type/style of bike I have. Guess I'm gonna sell it. It is a real good original but I'm wanting nice red,black,yellow americans.
    I like the classic Schwinn script with a springer front. Probably sell this one to get a older 60's 70's model(s). Thanks for all the help my bike'n brothers.
    Jim

  12. #12
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    That's the frame I'm looking for. I just need the whole thing. I'd rather have a King Size.

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    Senior Member surreal's Avatar
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    Quote Originally Posted by hk007134 View Post
    That's the frame I'm looking for. I just need the whole thing. I'd rather have a King Size.
    If you're gonna dream, dream big, right? I guess they're out there, but finding a King Size HD is highly unlikely.

  14. #14
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    I'll find one. It may take a bit but one will come my way. I just have to live long enough.

  15. #15
    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by surreal View Post
    You've got a late 80s/early 90s Hungarian-made SHD. Cool bike, and you don't see'm every day....

    Here's a similar bike, for reference.
    Winter Cruiser Build | Rat Rod Bikes

    HTH
    -Rob
    It's 86, and because I can't find catalog pages for 87-89, it is possibly an 87-89, but not 90s. In 1990 they had began using the unicrown curved fork with tapered legs.

    Schwinn catalogs, 1981 - 1990 (454 of 456)



    Check this out. I didn't know this, but in 1999 Schwinn made some reproduction Phantoms. BUT, they were hand built in the USA by Ted Kirkbride, who built Schwinns 50 years earlier. They were hand pinstriped using the original 1950s masking tools. Real S2 rims, etc etc etc.

    http://www.trfindley.com/flschwinn_1...0/1999_57.html
    Last edited by SquidPuppet; 09-09-14 at 11:26 AM.

  16. #16
    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by hk007134 View Post
    I'll find one. It may take a bit but one will come my way. I just have to live long enough.
    1962 Schwinn American King Size. Looks cherry. $1,250.00

    1962 Red Schwinn King Size American- Item C22

    They also have some black Heavy Dutis

    http://ltzer.tripod.com/id31.html





    Last edited by SquidPuppet; 09-09-14 at 11:24 AM.

  17. #17
    Senior Member surreal's Avatar
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    Quote Originally Posted by SquidPuppet View Post
    It's 86, and because I can't find catalog pages for 87-89, it is possibly an 87-89, but not 90s. In 1990 they had began using the unicrown curved fork with tapered legs.

    Schwinn catalogs, 1981 - 1990 (454 of 456)



    Check this out. I didn't know this, but in 1999 Schwinn made some reproduction Phantoms. BUT, they were hand built in the USA by Ted Kirkbride, who built Schwinns 50 years earlier. They were hand pinstriped using the original 1950s masking tools. Real S2 rims, etc etc etc.

    Schwinn catalogs, 1991 - 2000 (424 of 577)
    Holy crap, thanks for posting the link re: repop Phantoms. There was intense debate on a forum a lil while back, b/c no one could agree who built those frames, or where they came from. I dug deep into the GoogleWebs, but came up with nothing definite. I guess your link eluded me b/c it's a scan, so the text doesn't register in a search....

  18. #18
    Senior Member surreal's Avatar
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    Quote Originally Posted by SquidPuppet View Post
    1962 Schwinn American King Size. Looks cherry. $1,250.00

    1962 Red Schwinn King Size American- Item C22

    They also have some black Heavy Dutis

    1964 Black Schwinn King Size Heavy Duti- Item L43





    At those prices, i'd be inclined to buy a $70 frameset and build it from the ground-up...

  19. #19
    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by surreal View Post
    At those prices, i'd be inclined to buy a $70 frameset and build it from the ground-up...
    Yep, that would be my stong preference as well. But as you noted, finding a beater King Size frame and fork is like finding a unicorn that poops hundred dollar bills.

  20. #20
    Senior Member surreal's Avatar
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    Quote Originally Posted by SquidPuppet View Post
    Yep, that would be my stong preference as well. But as you noted, finding a beater King Size frame and fork is like finding a unicorn that poops hundred dollar bills.
    Yes, true.... which is part of why i don't give 2 turds about the Schwinn name.... finding tall-boy Worksman, Emory, and Trailmate frames is pretty easy. Even Colson 20" "Rainbow" frames can be had, for a decent price, if you're patient.

    I got me a tall-boy Trailmate; it's uglier than sin, which is part of why i love it so.....Frame/fork was something like $70 or $80 shipped, IIRC. Made by real rednecks in Bradenton, FL....

  21. #21
    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by surreal View Post
    Yes, true.... which is part of why i don't give 2 turds about the Schwinn name.... finding tall-boy Worksman, Emory, and Trailmate frames is pretty easy. Even Colson 20" "Rainbow" frames can be had, for a decent price, if you're patient.

    I got me a tall-boy Trailmate; it's uglier than sin, which is part of why i love it so.....Frame/fork was something like $70 or $80 shipped, IIRC. Made by real rednecks in Bradenton, FL....
    For me it isn't really the name, it's the quality of the old frames and the nostalgia. Memories of affection. I learned basic mechanics on bikes and grew up thrashing StingRays before the BMX boom. NOTHING could come close to surviving our abuse other than a Schwinn. Even they succumbed to some of our more violent shenanigans.

  22. #22
    Senior Member surreal's Avatar
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    MY experiences with these bikes has been that Schwinns tend to be durable, and some other builders (eg, AMF) tended to be more prone to failure, but other good makers, like Westfield (makers of Columbia and other marques) and Schneider (Colson, etc) made stuff that was just as resilient to abuse and neglect. Most all of these old and old-style bikes have the same basic Achilles's heels: the narrow seatposts bend, the seatstays snap where they meet the seat-tube, and the thin stamped drop-outs will fold or "blast out" from a lot of heavy hits. And, of course, the ubiquitous bent forks that plague bikes of almost every style and vintage. I get the whole Schwinn nostalgia thing, but having grown up in the 80s, I was riding bikes at a time when Schwinn's shine was fading rapidly, and was seen as being kinda fuddy-duddy. Not nearly as cool or polished as things like Redlines, Diamondbacks, GTs and Dynos. As we got older, MTBs took over, and we lusted after Specialized, Gary Fishers, things like that. But, never Schwinns. If you were stuck on a hand-me down Stingray in the 80s, that was seen as borderline child abuse by the kids with the cool BMX bikes. So, maybe that's got something to do with it, for me. As it stands now, I love old bikes, and i have a particularly soft spot for old American bikes. Schwinns have the advantage of being top-sellers for decades, so there's plenty to choose from out there, at a price. But I don't have any extra appreciation for their design or build quality.... I've found many of their designs to be derivative of others', and the QC tended to be good, but some stinkers slipped by, too. But, yeah, as far as pre-war 26" bikes go, Schwinn made some of the hottest-looking ones....

  23. #23
    Senior Member SquidPuppet's Avatar
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    Quote Originally Posted by surreal View Post
    MY experiences with these bikes has been that Schwinns tend to be durable, and some other builders (eg, AMF) tended to be more prone to failure, but other good makers, like Westfield (makers of Columbia and other marques) and Schneider (Colson, etc) made stuff that was just as resilient to abuse and neglect. Most all of these old and old-style bikes have the same basic Achilles's heels: the narrow seatposts bend, the seatstays snap where they meet the seat-tube, and the thin stamped drop-outs will fold or "blast out" from a lot of heavy hits. And, of course, the ubiquitous bent forks that plague bikes of almost every style and vintage. I get the whole Schwinn nostalgia thing, but having grown up in the 80s, I was riding bikes at a time when Schwinn's shine was fading rapidly, and was seen as being kinda fuddy-duddy. Not nearly as cool or polished as things like Redlines, Diamondbacks, GTs and Dynos. As we got older, MTBs took over, and we lusted after Specialized, Gary Fishers, things like that. But, never Schwinns. If you were stuck on a hand-me down Stingray in the 80s, that was seen as borderline child abuse by the kids with the cool BMX bikes. So, maybe that's got something to do with it, for me. As it stands now, I love old bikes, and i have a particularly soft spot for old American bikes. Schwinns have the advantage of being top-sellers for decades, so there's plenty to choose from out there, at a price. But I don't have any extra appreciation for their design or build quality.... I've found many of their designs to be derivative of others', and the QC tended to be good, but some stinkers slipped by, too. But, yeah, as far as pre-war 26" bikes go, Schwinn made some of the hottest-looking ones....
    Have you ever tried 7/8" 6061 solid rod? Cheap, light enough, takes a nice polish and won't bend. That's what the original Klunker Crew ran. We never needed to on the Stin-rays because we slammed the seat down low, and on cruisers we didn't ride like loons.

    Sounds like we are a decade apart and that makes all the difference. I don't really think of post '70s Schwinns as real "Schwinns". In 1970-1972, ramp jumping and riding trials on anything but a Schwinn Sting-ray was actually sketchy. My date of birth also got me jipped on the Big Wheel craze. I remember being juuuuuust slightly too old and big when those things came to market. I was p1$$ed off because all these little kids were hauling azz down our street, (big hill) two inches off the ground, and laying down these big arcing drifty powerslides. Much envy.
    Last edited by SquidPuppet; 09-09-14 at 07:01 PM.

  24. #24
    Senior Member surreal's Avatar
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    Big Wheels rule.

    As for posts, I've been doing preliminary testing with this: Order Stainless 316 Tube in Small Quantities at OnlineMetals.com on a Worksman. Pretty rad.

  25. #25
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    Those are nice. I'm 6.2 so a taller bike I would like to try but 1200-1250 is too much for me. I would have to stop working on my jeep pickup project and that would result in a deep resentment towards it..............the bike would become like a bad girl friend.......;(

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