Full Suspension....Yes it's possible

Discussion in 'Motorized Bicycle General Discussion' started by peregrine16, Jun 13, 2009.

  1. peregrine16

    peregrine16 New Member

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    r.ly.r.ly.


    So many said "you can't put a motor on a full suspension bike.

    Well I did and it runs great.
    I started with a $30 bike, a motor kit and aluminum rods that you weld with a propane torch....and built a full suspension (go anywhere) trail tamer. There is a lot of modification but it can be done

    check out the pictures.

    Paul B
     

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  2. peregrine16

    peregrine16 New Member

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    The trick is in the chain take-up.

    I used the bottom part of an old derailleur to take the slack.

    Works like a charm.
     

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  3. peregrine16

    peregrine16 New Member

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    Another pic
     

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  4. Cabinfever1977

    Cabinfever1977 New Member

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    thats a cool bike that you built,good job.
     
  5. Goat Herder

    Goat Herder Gutter Rider

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    Well I never knew aluminum could be done like that with a propane torch Can't really make out the welds. Looks good cool job! I got a similar project That I scored the same rear triangle design in a steal version. Welcome to the forum! Is the tensile strength compromised any? I always figured tig was the stuff for aluminum. Looks like the angle for the spring will work. Close up picts if you will please. How does the chain on the China fair of with the sus?
     
  6. peregrine16

    peregrine16 New Member

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    The front frame is aluminum, the rear suspension is steel.

    The aluminum welding is almost as strong as mild steel...so better than tig (my opinion).
    Bike is experimental and took a while to work out the bugs.

    Now that it's reliable, I will tear it down, clean it up and paint it.

    No issues with the china chain...just keep it well lubed and it works fine. I use Rustcheck. keeps it lubed and rust free.

    Check out these links for more info on aluminum welding:

    YouTube - welding aluminium part 1
    YouTube - Welding aluminium Part 2
    YouTube - Welding Aluminium Part 3
    YouTube - Durafix - 6
    YouTube - Aluminum-Repair.wmv

    peregrine16
     
    #6 peregrine16, Jun 14, 2009
    Last edited: Jun 14, 2009
  7. peregrine16

    peregrine16 New Member

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    Here are close-ups of the tensioner.

    Simple and effective.

    The aluminum welds are not pretty but I will clean them up before painting.
     

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    #7 peregrine16, Jun 14, 2009
    Last edited: Jun 14, 2009
  8. Easy Rider

    Easy Rider Santa Cruz Scooter Works

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    Good Job Paul. You total redone the frame but it looks like you put a lot of thought into it. 5 star job Buddy!
     
  9. peregrine16

    peregrine16 New Member

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    Thanks for the complement.

    I am already thinking about building another bike and your picture caught my eye.

    Can you post a larger version.
     
  10. Ghost0

    Ghost0 New Member

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    Nice job, this is easier though, no welding, but I love the innovation. I will admit that these style frames are hard to find.
     

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  11. BrettMavriK

    BrettMavriK New Member

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    Peregrine
    Just be careful with that style of welding with aluminum; especially for something structural.
    Good penetration can be tricky. Just observe your welds often for cracking.

    'BrettMavriK
     
    #11 BrettMavriK, Jun 14, 2009
    Last edited: Jun 14, 2009
  12. Ghost0

    Ghost0 New Member

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    No welding for me, out of my league. Peregrin16 (Paul B) is the welder.
     
  13. Easy Rider

    Easy Rider Santa Cruz Scooter Works

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    Sure, but this bike was made at a manchine shop with every tool possible to make this bike from stock.
     

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  14. peregrine16

    peregrine16 New Member

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    #14 peregrine16, Jun 14, 2009
    Last edited: Jun 14, 2009
  15. peregrine16

    peregrine16 New Member

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    This is for Easy Rider.

    That bike is poetry in motion.

    I am an Mechtech and graphic designer.

    This is what I had in mind for my next build but with a China engine.

    Your bike should be in production.
    When is it going to be in production?
    I see room for the engine to be droped making it's CG lower.
     
    #15 peregrine16, Jun 14, 2009
    Last edited: Jun 14, 2009
  16. city of angels

    city of angels New Member

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    hi good looking bike i had a quick question where can you get rust check and does it keep lube and rust free
     
  17. old motorbike

    old motorbike New Member

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    Great ideas Peregrine and aluminum welding products. They really give some ideas.
    I want to build a full suspension also.
    Where do you find Techno-weld?
     
  18. peregrine16

    peregrine16 New Member

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    The aluminum rods are sold under many names. I got some on Ebay and at my local welding shop.

    Never did buy Techno-weld, I got Ideal rods.
     
  19. peregrine16

    peregrine16 New Member

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    I live in Canada and Rustcheck here can be bought at most hardware stores and automotive shops.

    Yes it lubes and keeps the chain rust free.
     
  20. peregrine16

    peregrine16 New Member

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    Summer's riding proves it works.

    Been riding my prototype for a while and it's still working.

    Weld is strong if one cleans the joint well and applies lots of fill.
    Had the weld on the head tude let go but redone the joint with a good stiff stainless brush, applied lots of heat and lots of weld and it's holding.
     

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