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  1. #1
    Senior Member Spaceweasel's Avatar
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    Ludicrous idea time

    Time for everyone to weigh in on my ludicrous idea.

    Warp 9 motor at 170ish volts set longitudinally in a full size motorcycle chassis. Single sided shaft drive. Transmission to achieve both the offset from centerline and a choice of ratios (but no clutch, so only shifted between ratios at a stop). Batteries and controller TBD, but enough amps to be exciting and enough kWh to reasonably commute. Not a drag/race bike, but powerful enough to stir the imagination. Styling will not follow the stock bike, but will celebrate the electric drivetrain.

    Thoughts?

  2. #2
    Senior Member Spaceweasel's Avatar
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    Member Duck-Stew's Avatar
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    BMW driveline, eh? I thought earlier this year about an AC20 in a Honda ST1100...
    '10 Zero S project

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    Senior Member Spaceweasel's Avatar
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    Transmission (2004 k1200GT)
    1st gear: 2.05
    2nd gear: 1.60
    3rd gear: 1.27
    4th gear: 1.04
    5th gear: 0.90
    6th gear: 0.82

    Final drive (2006 K1200S) 2.82

    This should give me choices from 5.78:1 to 2.31:1.

  5. #5
    Junior Member ChazFisher's Avatar
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    Quote Originally Posted by Spaceweasel View Post
    Transmission (2004 k1200GT)
    1st gear: 2.05
    2nd gear: 1.60
    3rd gear: 1.27
    4th gear: 1.04
    5th gear: 0.90
    6th gear: 0.82

    Final drive (2006 K1200S) 2.82

    This should give me choices from 5.78:1 to 2.31:1.
    Curious why you'd go with two different gen BMWs for swingarm and transmission. That trans is made for a right-side swingarm, while the '06 is a left side. (I rode an '02 K1200RS up until I traded it in a month ago.) For that generation transmission, the flywheel/clutch slides over splines on the engine output shaft, and is bolted in place with one bolt right down the center. There's a complete parts fiche online at realoem.com if you haven't found it yet.

    I'm watching with interest!

  6. #6
    Senior Member Spaceweasel's Avatar
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    I like being able to cross reference the parts and see what other bikes they were used on. PM sent about the transmission.

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    Just don't break any parts. BMW replacement parts are expensive. I like your idea, though. Good luck! You might be the first to try anything like this.
    Richard - Current bikes: 2018 16.6 kWh Zero S, 2016 BMW R1200RS, 2011 Royal Enfield 500, 2009 BMW F650GS, 2005 Triumph T-100 Bonneville, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

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    Empulse R #24 frodus's Avatar
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  9. #9
    Senior Member Spaceweasel's Avatar
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    What are ElMoto's thoughts on the Curtis 1231C-8601 paired with a Warp9?

  10. #10
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    You'd be better off with a smaller motor and bigger controller (ex. Z1k). It really depends on your goals. Also, while the tranny idea is neat, unless you're racing it's not really necessary. Then again it's not that big, lol. Have a look at the ImPact 9 also.

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