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  1. #1
    Senior Member Uncle Randy's Avatar
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    Triple butted steel frames in the 1970s

    As I recall, triple butted was marketed as a better alternative to double butted frames in the 1970s. I recall that seamless, triple butted steel frames by Reynolds were considered to be the best and I think Peugeot made a few.
    This is a 1983 Austro-Daimler with a triple butted Reynolds 531 frame:

    Source: 1983 Austro-Daimler | Cycle Logical

    Am I "misremembering" as another member has suggested?
    Last edited by Uncle Randy; 09-22-14 at 09:02 AM.
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  2. #2
    Decrepit Member Scooper's Avatar
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    According to the Reynolds Technology FAQ "triple butted" simply means that a tube has three different wall thicknesses along its length, e.g. 0.9mm/0.5mm/0.7mm.

    I've seen lots of butting profile data sheets for 531, but have never seen 1980s standard diameter 531 tubes that are triple butted. I suppose Reynolds might have produced some on special order if the order was for a significant quantity.

    This butting profile data is typical of others I've seen for 531. Note the butts on both ends of the frame tubes (except for the triple butted 34.9mm dia. OS BB141 and the seat tube CB 131) are double-butted, e.g. the same thickness.

    Last edited by Scooper; 09-21-14 at 09:19 PM.
    - Stan

  3. #3
    Senior Member randyjawa's Avatar
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    Is there a triple butted Reynolds sticker on the bike and, if so, could I see a picture please?
    Learn how to find, restore and maintain vintage road bicycles at... MY "TEN SPEEDS"

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    Senior Member Grand Bois's Avatar
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    Quote Originally Posted by Uncle Randy View Post
    As I recall, triple butted was marketed as a better alternative to double butted frames in the 1970s. I recall that seamless, triple butted steel frames by Reynolds were considered to be the best and I think Peugeot made a few.
    This is a 1983 Austro-Daimler with a triple butted Reynolds 531 frame:

    Source: 1983 Austro-Daimler | Cycle Logical

    Am I "misremembering" as another member has suggested?
    Posting a 1983 bike does not prove the existence of triple butted frames in the 1970s. I still think that you are "misremembering". I'd love to see a picture of a 1970's Peugeot with a triple butted frame.

    I don't doubt the existence of triple butted frames in the 1980s. I think I have a 1982 Fuji with a triple butted sticker on it. It's Val Lite tubing and not high end.
    Last edited by Grand Bois; 09-22-14 at 08:33 AM.

  5. #5
    Fast+Bulbous thinktubes's Avatar
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    "It's one louder"

  6. #6
    Fat Guy on a Little Bike KonAaron Snake's Avatar
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  7. #7
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    I read it on the internet, so it must be true.

  8. #8
    Senior Member bikemig's Avatar
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    Quote Originally Posted by nlerner View Post
    I read it on the internet, so it must be true.
    + 1.

  9. #9
    aka Phil Jungels Wanderer's Avatar
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    I always thought that double butted pipe meant that diameter was the same on BOTH ends..... Without three ends, how could it be triple butted?

    "Retirement is the best job I ever had!" Me, 2009


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  10. #10
    What??? Only 2 wheels? jimmuller's Avatar
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    I like my toast double-buttered. Triple-buttered might be a bit messy.
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  11. #11
    Junior Member herzogone's Avatar
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    Quote Originally Posted by Wanderer View Post
    I always thought that double butted pipe meant that diameter was the same on BOTH ends..... Without three ends, how could it be triple butted?
    You are correct on the meaning of double butted, but triple-butted just means it has two "steps" of thickness at both ends. This illustration makes it clearer.

    Edit: you were probably joking, but I'll leave my reply for the curious who were not already aware

  12. #12
    Senior Member
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    Quote Originally Posted by jimmuller View Post
    I like my toast double-buttered. Triple-buttered might be a bit messy.
    So double buttered would be both sides and triple buttered would be the crust being buttered? I want to make sure my understanding of toast construction technology is correct.

  13. #13
    Senior Member himespau's Avatar
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    As long as you're not one of those heathens who only puts peanut butter on one side of a peanut butter and jelly sandwich, I think we can get along fine. Everyone knows you need to put the peanut butter on both slices of bread so that the jam doesn't soak in and make the bread all soggy. At least anyone who's ever packed lunch the night before to save time in the morning knows this.
    Punctuation is important. It's the difference between "I helped my uncle, Jack, off a horse" and "I helped my uncle Jack off a horse"


  14. #14
    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by Wanderer View Post
    I always thought that double butted pipe meant that diameter was the same on BOTH ends..... Without three ends, how could it be triple butted?

    IIRC, the "triple butt" increased the wall thickness where the lever bosses would be placed. Either that or this:

    https://www.youtube.com/watch?v=TbN9doxZusQ

  15. #15
    Decrepit Member Scooper's Avatar
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    There must be multiple definitions of "triple butted." Since Uncle Randy was asking about Reynolds 531, I quoted the Reynolds definition in the first reply to his question and provided a link to the quote.

    I wonder if other tubing manufacturers have published definitions.

    - Stan

  16. #16
    Decrepit Member Scooper's Avatar
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    The Gear-To-Go Tandems website elaborates on the Reynolds definition on its "Materials" page:

    "What is a "triple butted" tube? While triple butted sounds like a 50% improvement, it's usually an easier-to-produce variation of a double butted tube where the two thick ends don't match (i.e. 10/7/8). Because the optimal .3mm differential only exists at one end of the tube, a triple butted tube is typically less expensive (removing the taper-producing mandrel is relatively simple when one end of the tube is only partially butted). While many tubing companies hyped triple-butted tubing in the early '80s, enlightened consumers have made these tubes rare."
    - Stan

  17. #17
    Senior Member Homebrew01's Avatar
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    Quote Originally Posted by himespau View Post
    As long as you're not one of those heathens who only puts peanut butter on one side of a peanut butter and jelly sandwich, I think we can get along fine. Everyone knows you need to put the peanut butter on both slices of bread so that the jam doesn't soak in and make the bread all soggy. At least anyone who's ever packed lunch the night before to save time in the morning knows this.
    What if you are going to eat it right away ? Then putting peanut butter on both slices will add a lot of extra labor for no real benefit. Also, I generally use "natural" peanut butters which tend to be thicker and harder to spread thinly, so buttering both slices would use too much, throwing off the bread/pb/jelly ratios.
    Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike

  18. #18
    Senior Member Uncle Randy's Avatar
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    Quote Originally Posted by Scooper View Post
    The Gear-To-Go Tandems website elaborates on the Reynolds definition on its "Materials" page:

    "What is a "triple butted" tube? While triple butted sounds like a 50% improvement, it's usually an easier-to-produce variation of a double butted tube where the two thick ends don't match (i.e. 10/7/8). Because the optimal .3mm differential only exists at one end of the tube, a triple butted tube is typically less expensive (removing the taper-producing mandrel is relatively simple when one end of the tube is only partially butted). While many tubing companies hyped triple-butted tubing in the early '80s, enlightened consumers have made these tubes rare."
    Thanks, Scooper. I'll have to research this more at the library. This thread is filled with more sarcasm than information which is not what I intended.
    I'm not in a hurry. 24 speeds are enough for me.

  19. #19
    Senior Member Uncle Randy's Avatar
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    Quote Originally Posted by herzogone View Post
    You are correct on the meaning of double butted, but triple-butted just means it has two "steps" of thickness at both ends. This illustration makes it clearer.

    Edit: you were probably joking, but I'll leave my reply for the curious who were not already aware
    Thanks, Herzogone. I remember an illustration like this from some of the 1970s literature:

    I'm not in a hurry. 24 speeds are enough for me.

  20. #20
    one life on two wheels cobrabyte's Avatar
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    I sense some triple butthurt going on

  21. #21
    What??? Only 2 wheels? jimmuller's Avatar
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    Quote Originally Posted by Uncle Randy View Post
    This thread is filled with more sarcasm than information which is not what I intended.
    Sarcasm? Nah. Humor though.

    I expect a Spinal Tap reference soon.
    Real cyclists use toe clips.
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  22. #22
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    Quote Originally Posted by randyjawa View Post
    Is there a triple butted Reynolds sticker on the bike and, if so, could I see a picture please?
    Uncle Randy, please respond to this post if you haven't already done so. At least two of us would like to see the Reynolds sticker on the bike pictured in your first post, described by you as indicating triple butting.

  23. #23
    Senior Member Uncle Randy's Avatar
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    Quote Originally Posted by Trakhak View Post
    Uncle Randy, please respond to this post if you haven't already done so. At least two of us would like to see the Reynolds sticker on the bike pictured in your first post, described by you as indicating triple butting.
    That's not my bike. I'll have to contact the guy who owns the blog.
    I'm not in a hurry. 24 speeds are enough for me.

  24. #24
    Senior Member Uncle Randy's Avatar
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    Quote Originally Posted by cobrabyte View Post
    I sense some triple butthurt going on
    So you want to fill this thread up with garbage, too?
    I'm not in a hurry. 24 speeds are enough for me.

  25. #25
    Gouge Away kaliayev's Avatar
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    I don't think marketing has changed in the last 30 or 40 years. Just like about everyone else, bike companies continually are coming out with "newer and better". Logically if triple butted is better than double would not the mid 80's Fuji quad butted frames be the best ever made?
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