advice needed re motor for Electric Chopper bicycle

Discussion in 'Introduce Yourself' started by ajillfisch, Jul 12, 2014.

  1. ajillfisch

    ajillfisch New Member

    My friend in Colombia has bought an Electric Chopper bicycle that needs a motor. As I am going there next month he's asked me to buy one and bring it to him. However as I've tried to research it I am overwhelmed by the vast amount of information, not to mention differing opinions.
    First of all, is this something that can be carried in a suitcase? And if so, what motor would be the best at the low end of cost? He wanted electric but I'm not sure that is possible.
    Any advice is appreciated. Thanks in advance.
     

  2. wheelbender6

    wheelbender6 Well-Known Member

    You need a picture of his e-chopper to determine that.
    It may have a hub motor in the wheel. In that case, a hub motor wheel would pretty much take up one entire suitcase.
    You also need to know the specs on his motor; volts and watts.
    Most common motor is 36v500w.
    He may be able to determine voltage by the number of batteries needed to operate it.
    2 batteries is usually 24 volts. 12v per battery. 3 batteries is 36v. 4 batteries is 48v, and so on.
     
  3. ajillfisch

    ajillfisch New Member

    Thank you, he did send me a picture. Should I post it? As to the specs, I'm not sure he even knows...he did say he could also use an 80 cc motor.
     
  4. wheelbender6

    wheelbender6 Well-Known Member

    Yes. Post the picture, please.
     
  5. ajillfisch

    ajillfisch New Member

    This is the bike.

    IMG_20140512_140847.jpg
     
  6. wheelbender6

    wheelbender6 Well-Known Member

    Hmmm. Looks like the electrics are removed, but there is a nice engine bracket installed. It would be easier if we knew there was a chain sprocket on the non-pedal chain side of the rear wheel. To use that nice bracket, you would need a motor, throttle, sensor brake levers, compatible controller, etc.
    -If all those parts are indeed needed, you would do better to buy a complete kit, to make sure all components work together.
    It would be tough to find a fat hub motor wheel for the rear. so I would consider a full mid-drive kit.
    A mid drive kit would require him to remove that nice big chain guard, but it is easier than finding a hub motor wheel for the rear.
    Can he get 12v 10ah batteries in Columbia? They are heavy and expensive to ship.
    Here are some links to mid drive kit vendors:
    http://www.sickbikeparts.com/catalog/index.php?cPath=26
    http://www.gngebike.com/middrivekit.htm
     
  7. ajillfisch

    ajillfisch New Member

    Thanks so much. Could he use a gas motor? Those seem cheaper. From what you sent me it seems it would be at least $400 for an electric one?
     
  8. wheelbender6

    wheelbender6 Well-Known Member

    A gas motor could work if it has a gear reduction box attached. A lot of the two stroke go-ped and pocket-rocket engines have a small gear reduction box.
    We still don't know if his back wheel has a chain sprocket on the left side (as you sit on the bike).
     
  9. ajillfisch

    ajillfisch New Member

    Thanks a lot. I think you've convinced me this project is beyond me!
     
  10. ajillfisch

    ajillfisch New Member

    Actually if I could. Ask one more question - a shop in Colombia did recommend a gas motor. So if I assume the conditions you mentioned are present, could you recommend one or would it still be too hard to carry?
    Thanks again!
     
  11. wheelbender6

    wheelbender6 Well-Known Member

    A two stroke 49-66-80cc kit from most online vendors like bicycle-engines.com should work fine. A two stroke kit should weigh under 30 lbs and takes up less space than a hub motor wheel.
    -However, the chopper is so long that you will need a second chain added onto the kit chain.
    -You will need a "stingray" engine mount from an engine vendor or ebay that allows you to offset mount the engine an inch or so to the left, so that the motor chain will clear that fat rear tire.
    -Some engine vendors sell a chopper installation kit that includes the offset engine mount and some other needed goodies.
    With all that, it is still cheaper than a good mid drive electric kit and easier to check on a plane as baggage than a hub motor wheel with batteries.
     
  12. wheelbender6

    wheelbender6 Well-Known Member

  13. ajillfisch

    ajillfisch New Member

    Thank you so much! I really appreciate your detailed replies, they have been so helpful. (I like your quote too - love Oscar Wilde!)
     
  14. cowboy1948

    cowboy1948 New Member

    It is a izip electric chopper. I have one. Runs real nice. Let me get the numbers, off of the motor, etc. And I ll post some close up pics too.
     
  15. KCvale

    KCvale Motorized Bicycle Vendor

    That looks like a little kids toy.
    Perhaps those side bars on the bottom bar are to hold a 12V car battery?
     
  16. cowboy1948

    cowboy1948 New Member

    :grin5::evilgrin:the bars you are referring to. Hold the brush electric motor and is a chain guard also. Let me get my cam out. and post some picks.
     
  17. cowboy1948

    cowboy1948 New Member

    I ll post some more later. any questions?:cool2::devilish:
     

    Attached Files:

  18. cowboy1948

    cowboy1948 New Member

    I noticed that there is Schwinn occ tires on it.:cool2:
     
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