My 63 Schwinn 97cc motorized bicycle build

Discussion in 'BIKES WITH MOTORS' started by Dowie Soetenga, Oct 25, 2010.

  1. Dr. Tankenstein

    Dr. Tankenstein

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    I always seem to find something about a build that, 'if it were mine', I'd change.....There is NOTHING about this bike that I would change. Seriously, if it were to magically appear in my garage, it would look the same way in 10 years, 20 years.....

    Cheers!
    Dr. T
     
  2. Dowie Soetenga

    Dowie Soetenga

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    Thanks Dr. T! I try to keep my creations clean and simple. That's the hard part right? Of couse using 3D CAD helps me figure it all out before I cut or weld a single piece of steel.

     
  3. Dowie Soetenga

    Dowie Soetenga

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    63 Schwinn 97cc board tracker (idler and heat shield update)

    Over the last few weeks I finished the exhaust heat shield and primary chain idler. I noticed a huge difference in how smooth the bike transitions from a dead stop, to full clutch engagement, to top speed. Note that I now have a primary chain idler, (engine to jackshaft input) and a final drive chain idler. (Jack shaft output to rear wheel)
    [​IMG]
    [​IMG]
     
  4. Gdcast

    Gdcast

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    So that´s how heaven looks!!!
    Please show us more!
     
  5. skillsthebarber

    skillsthebarber

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    what are these things called that the brakes are attached to? I need some of these for my build off bike? thanks
    [​IMG]
     
  6. Rat Rod

    Rat Rod Owner & Founder Staff Member Moderator Pro Member

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  7. Dowie Soetenga

    Dowie Soetenga

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    They are custom fabricated to put modern brakes on a vintage schwinn frame. Here is the construction. The split shafts clamp on the rear of the frame so you do not have to weld them to your frame.
    [​IMG]
     
  8. Dr. Tankenstein

    Dr. Tankenstein

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    This is such a brilliant idea and one that I'm sure will be copied numerous times in the future.

    Great work.

    Cheers,
    Dr. T
     
  9. harry76

    harry76

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    Very very nice. That brake idea is genius!!!!
     
  10. Dowie Soetenga

    Dowie Soetenga

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    Thanks for the positive feedback(s) on the brake bosses. They work great might I add. I've been running them for one season with no issues. The split shaft collars "clamps" hold tight. I've had no issues with them shifting after I installed them. If I had the time to make a good welding jig, I'd make them in bulk.
     
  11. Dr. Tankenstein

    Dr. Tankenstein

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    Where can one purchase a "split shaft collar"?
    Just askin'.....for now. :mrgreen:

    Cheers,
    Dr. T
     
  12. Dowie Soetenga

    Dowie Soetenga

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    A good Ace or True Value hardware store carries them. They have both metric and standard. The rear frame tubes on my 63 schwinn measured .551" so a 14mm split shaft collar fits perfect. I used split shaft collars for my motor mounts as well. 1.00" for the bottom two mounts, and .625" for the top mount. They work great. You can order them online though http://www.mcmastercarr.com . Just type in shaft collar, and navigate to two piece clamp on version.
     
  13. Dr. Tankenstein

    Dr. Tankenstein

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    Thanks brother!

    Cheers,
    Dr. T
     
  14. harry76

    harry76

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    These split collar thingys are very useful..... ive seen these used to make replica 2 piece boartrack handlebars
     
  15. rydr1

    rydr1 Pro Member

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    Amazing work.
     
  16. lmpromo

    lmpromo

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    Hi Dowie
    We are all little kids when we see a build like this that we can all see ourselves enjoying the
    dream of getting on this awesome bike and riding it ourselve. Thank you for sharing the pictures and that only proves that anything is possible as long as we believe it could be built and the genious it takes to actually achieve it.
    lmpromo11
    Harvey
     
  17. bhaltima08

    bhaltima08

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    Wow, all the great fab work and detailed cad images. You could make some serious coin if you took orders for some of your fab'd stuff. I love the rear break mounts, but unfortunately don't have the equipment to make them.
    :D
     
  18. chagovatoloco

    chagovatoloco

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    Ok off topic, but is that a flat head I see in the back round? nice :D like they say hot rods don't have valve covers :lol:
     
  19. phusion x

    phusion x

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    what cad program(s) did you use to do that model. id love to be able to do something other than blueprints. thanks.
     
  20. Dowie Soetenga

    Dowie Soetenga

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    Thanks for the positive feedback guys. Keeping the design simple is the hard part. I used an engineering program called SolidWorks to to the 3D CAD modeling, renderings, and blueprints.

    The hot rod in the background is a 1931 Ford Roadster with a 1939 Flathead V8 motor. My board track bicycle has a 2.5HP flathead as well. Flatheads forever!
     

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