The trigger is pulled, 79cc Predator purchased 5/21/16 loop frame

Discussion in '4-Stroke Engines' started by Tom from Rubicon, May 22, 2016.

  1. Hoping CulverCityClassic will chime in. Having delivered to Lynn@Custommotored.com, 27 drive sprockets I machined to her specs. we got to talking. Right now my ride is a 49cc HuffyDavidson. . Lynn told me that Jeff Wolfe was the first to stand the 79cc straight up which will be period correct to loop frame cycles. Sportsman does an excellent build also. As I live less than an hour from Lynn and she has a pretty much full service inventory.
    I am going to use her EZ trans package for a 79cc build with a Worksman drop loop frame. The list does go on and I will dutifully categorize the whole build;
    Tom from Rubicon, WI
     

  2. chainmaker

    chainmaker Member

    Good luck on your build, I'm not sure Jeff (Culver City Classics) is on this forum
     
    Tom from Rubicon likes this.
  3. bakaneko

    bakaneko Active Member

    good luck. looking forward to seeing it
     
  4. You are right, he posts on the other one.
     
  5. Hey Joe, how ya doing? I have sprockets I machined for Custom Motored Bikes going back to Lynn Saturday
    at 10AM. Want to come along?
     
  6. Another trip to Lynn@Custommotored.com this coming Saturday. I bored out 8 more sprockets on my lathe for her.
    Got an email today confirming my appointment and asking me to modify more sprockets. Not all work though,
    a Worksman Drop Loop frame for the 79cc Predator that followed me home last weekend will be in the truck.
    A grocery list of components is being compiled.
    Took a brief break at work today to make a preliminary sketch of a stylized Sportsman Flyer in frame fuel tank.
    I work at a metal fabrication Co. and have befriended a master welder to TIG the assy. Said master welder is a seven build motorbicyclist, it was his ride (even in the winter in a snow storm ) that rekindled my interest in motorized bicycles.
    Tom
     
    Timbone likes this.
  7. Frankfort MB's

    Frankfort MB's Well-Known Member

    Sounds about what my project is turning into.... A very long expensive list lol
    Love to see pics???
     
    Tom from Rubicon likes this.
  8. bakaneko

    bakaneko Active Member

    Hey, something to think about. Are you thinking about making the entire setup dynamic enough so that if you wanted to put the 212cc on their you would be able to without taking apart the entire bike and spending significantly more?
     
    Tom from Rubicon likes this.
  9. Yeah Frankfort, but having a complete machine shop, a lot of normally purchased parts will be designed by me.
    Then machined by me. I became a Tool and Die Maker before CNC and my Masters trained me well. So there ain't much I can't make if I want to.
     
  10. Bakaneko,
    I really don't think you have to go there (212cc). It is WIDE and heavy, sucks more gas. Remember that I am building this bike with a $379 Worksman drop loop frame. The standard frame is not cheap either. You want to get hurt?
    I am 65 years young, and have done a lot of fool things.
     
  11. We will see Joe, Now I have a frame to work with and a beauty it is. Worksman drop loop. I am reverse engineering a proven design and will improve on it to make my design flexible to various power plants including a 212cc if you wish.
    I dropped off 8 re-machined drive sprockets and took delivery of 18 more, the payment credit of which will be applied to my next purchase from custommotoredbicycles.com /rebelmb.com.
    If you are looking at lowest cost, My workmate Isaiah would be the dude.
    Tom from Rubicon
     
  12. bakaneko

    bakaneko Active Member

    cool, cool. are you planning to put a jackshaft in?



    some bicyclist tried to street race me in pewaukee this evening. i past him and had to wait at the light. and after the light i was just coasting along at 15mph he passed me going hard. he was pretty fast up to 25 mph then i passed him at 32mph. hahaha :D
     
  13. Frankfort MB's

    Frankfort MB's Well-Known Member

    I'm guessing that's your bike? Does it still have governor?
     
  14. bakaneko

    bakaneko Active Member

    no, no that isnt me but a video i found on youtube of a predator 79cc with a jackshaft. guy is going 40 at 4th gear with 3 more gears. i am a light rider so with me on it i might be at 45 at 4th gear, which is kinda what i want.
     
  15. Frankfort MB's

    Frankfort MB's Well-Known Member

    I know some tricks on 212 predators;)

    Got a buddy that's got one and is making 12ish horsepower with only about 100$ish in upgrades

    Probably making more but I know it pulls like a mule lol
     
  16. bakaneko

    bakaneko Active Member

    yeh, ive been thinking about this for a bit. not to hijack tom's thread. but a lifan probably has better performance than the predator but it means that you have to replace the disc brake in the back or have no rear brake and you will need to have a custom mount. while the predator can retain the rear disc brake with a jackshaft and there are mounts available for it.

    and then there is the 2-stroke gp460 used on gopeds that produces what 4hp at 11k rpms! imagine that on a bike with a jackshaft. LOL
     
  17. Frankfort MB's

    Frankfort MB's Well-Known Member

    What Lifan motor are you talking about
     
  18. bakaneko

    bakaneko Active Member

    the lifan 125cc semi auto 4up,1down. same motor clone as in the honda grom though instead of 3-4G, maybe closer to 700hundred.
     
  19. Frankfort MB's

    Frankfort MB's Well-Known Member

    Sounds like a bad little motor!! How much power it making?
     
  20. Rico glover

    Rico glover Member

    My lifan engine on my bike makes 5 1/2 hp 4 down very very reliable once you build one 4 stroke that 2 stroke cap becomes history.
     
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