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Thread: Chinese E-Vader/E-Grom/E-Monkey

  1. #1
    Junior Member
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    Jun 2020
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    Chinese E-Vader/E-Grom/E-Monkey

    I just purchased one of those Chinese 2000W mini bikes that go by various names such as "E-Vader" or "E-Grom" or "E-Monkey".
    The one I ordered claims to have LifePo4 batteries rather than the normal lead acid ones.
    I plan to do a very detailed review of the unit, and post a lot of the information that I have searched for, but either could not find or had to source from many different places in the hopes that this might help someone else in my situation down the road. These bikes use the QSMotor hub motors, but from what I can gather, it is a custom "72V1950W" unit. I cannot find any good pictures of it so I will post some after I receive mine.

    Mods I plan to do include:
    - Replacing the stock 72V battery with a 96V battery made from first gen Leaf cells (If I can get them to fit)
    - Replace the anemic stock controller with something substantially more powerful (Maybe a bigger Kelly or a SEVCON)
    - Replace the stock 10" 2kw hub motor with a 12KW 12" one, and replace the front stock 12" wheel with a 14" one
    - If possible, replace the stock front forks with a set off of a honda grom or something similar.
    - Upgrade the rear shock
    - reinforce the welds on the frame
    - add a permanent on-board charger with standard AC in, and J1772 support

    If anyone has any insight into any weird quirks on these motorcycles, I would appreciate the info.

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  3. #2
    Senior Member Stevo's Avatar
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    Nov 2014
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    Welcome to the forum. This will be an interesting thread. Be sure to include lots of pics . Cheers
    Current rides: '96 Honda Ohlins VFR, '03 Cannondale C440R, '03 Cannondale Cannibal, '06 Yamaha 450 Wolverine 4x4
    Current builds: eVOR.v3.3

  4. #3
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    Jun 2017
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    if the seat and handlebar will be the only things you do not plan to change you might just as well find a better suited different bike alltogether for your conversion. I.e. without altering the frame..

    A more pragmatic tip:
    make sure your 12 KW hub motor will fit your swing , otherwise see above
    Keep us posted


  5. #4
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    Jun 2020
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    I received a Boom E Vader with SLA batteries a month ago. Same hub motor you have. I am working on upgrades myself and would love to share tips and tricks.

  6. #5
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    Jun 2020
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    Well that's disappointing...
    The company I ordered from canceled my order because they miscounted inventory and cant get any more in stock because of covid...

    Oh well...
    Back to plan A then.
    Plan A was my other motorcycle project: Yamaha XS750 conversion.
    Ill post another thread for it.

    Sent from my GM1915 using Tapatalk

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