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Thread: handlebar wall thickness

  1. #21
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    Default Re: handlebar wall thickness

    Good Morning,

    I cannot recommend using an existing steel handlebar made for a standard stem clamp for an Handlebar-Stem-Combo. I make those regulary and ended up with getting my own CrMo Handlebars made for this purpose.
    Hey, I am german and, even worse, an engineer, so it is natural that I have an addiction to paperwork. :-) I got my combos endurance and max load tested by velotech.de and found that they are strong, but not overbuild. And the handlebars I got made have a wall thickness of 1.3mm in the 1" centersection, so be careful with thinnerwalled handlebars made for the usual stem clamps!

    Greetings,
    Georg





    GEBLA PRECISION FRAMES - Engineered to perform - Designed to fit - Handmade to order
    Georg Blaschke
    http://www.gebla.de
    http://www.georgblaschkebikes.wordpress.com

  2. #22
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    Default Re: handlebar wall thickness

    Damn nice bike!
    __________________________________________

    "Even my farts smell like steel!" - Diel

    "Make something with your hands. Not with your money." - Dario

    Sean Doyle

    www.devlincc.com

    https://www.instagram.com/devlincustomcycles/

    https://www.flickr.com/photos/139142779@N05/

  3. #23
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    Default Re: handlebar wall thickness

    Reviving an ancient thread here -- can anyone tell me how they manage swaging the center section of CroMo bars? Is it an in house technique or a send-out? I'd like to do some experimenting with my JD bender over the winter, and would like to do 31.8 stem clamp diameters. Thanks for help
    Jay Borden
    Roulez Cycles, now in the City of Synn Instagram: roulezcycles

  4. #24
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    Default Re: handlebar wall thickness

    I don't think there are too many builders that bulge form their bars, if that's what you mean. The Paragon shims that I mentioned above or sleeves are what I normally see. SP421 - aluminum Shim
    sp4020 is silver. Somehow they managed to break their website on my browser.
     

  5. #25
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    Default Re: handlebar wall thickness

    And as Rody says, the amount of swaging (or bulge forming) required to go from 1-1/4" to 0.875" at the grips is too much/bad for durability.

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