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    Cagiva Supermoto Bulid (4kW Legal)

    Thanks all ! Power is 4kW, and top speed 45 km/h of course ;) There is no build thread, but there's a web page and all the rest. Yes, of course it's electric, I was electric powertrain team lead for that formula :D https://www.fsb-racing.com/ https://www.facebook.com/FSBRacing/?ref=br_rs...
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    Cagiva Supermoto Bulid (4kW Legal)

    Also made new rear sprocket (left one)
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    Cagiva Supermoto Bulid (4kW Legal)

    _LNRmeIjmC8
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    Cagiva Supermoto Bulid (4kW Legal)

    I'm done with this Heinzman motor, but I can send you .stl for Hall sensor mcstar. I bought and installed new QS 3000W mid motor and it goes like crazy. I only ride at 80% torque (Kelly controler) because it is more than enough. Any more than that and it wheelies as soon as you twist the...
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    Cagiva Supermoto Bulid (4kW Legal)

    Yes, of course. But what caused it to rub against a stator in the first place. When the motor arrived the shaft/rotor was pushed inside and touching the back stator. I was not able to spin the shaft by hand. So i managed to put it back in the middle, and replaced seeger ring on the shaft that...
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    Cagiva Supermoto Bulid (4kW Legal)

    Q8J8lCsx4Do I opened the motor and edge of rotor has beed grinding on the stator so this is where it lost magnetic properties. I don't know any more what happened. As I spent a lot of time and money I bought budget motor just to get it running again QS 3000W mid drive, reported to be able to...
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    Cagiva Supermoto Bulid (4kW Legal)

    It is possible if you refer to arduino converter. It has about 10kHz sampling rate for analogRead if I remember correctly. So the limit is around 6000 rpm (at that speed delay is about equal to 1/6 of phase frequency or one hall signal going up or down.). But that doesn't matter as hall signals...
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    Cagiva Supermoto Bulid (4kW Legal)

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    QS 3000w midmotor

    what is real QS motor website ? I don't want to make a wrong payment http://www.cnqsmotor.com/en/ http://www.qs-motor.com/ https://www.qsmotor.com/ Thanks
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    Cagiva Supermoto Bulid (4kW Legal)

    So I did some measurements to make sure what happend. Used old controller to get exactly half throttle/half pwm (kelly has regulators n sht) and messured rpm to get KV. If rated voltage is 55V and rated rpm 6000 that gives KV of 109. (Heinzman datasheet) At 50% PMW or 41V (82V Batt) motor...
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    Cagiva Supermoto Bulid (4kW Legal)

    Motor overheated & demagnetised. So now that I added a heatsink, contoller was no longer cutting down power. So after a long non-stop ride with regenerative braking enabled the motor overheated and demagnetized. I was riding at constant speed, not too aggresive, around 3/4 throttle. So I...
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    Cagiva Supermoto Bulid (4kW Legal)

    Did some "wannabe" aesthetic touch up :P Need to remove that bulky instrument cluster and mount headlamp on forks, it is now fixed on chassis. And added a heatsing to kelly controller, will add a fan too but it doesn't look like it needs it :) also burst 300A is definned only by "10 seconds"...
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    Cagiva Supermoto Bulid (4kW Legal)

    I constructed it in solidworks and sent .dxf to my friend who has all kinds of machines soo.. yeah... paid around 100$ if I remember correctly, together with battery boxes.. for material only
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    Cagiva Supermoto Bulid (4kW Legal)

    I managed to enhance throttle response by setting Kp and Ky relly high. Because I don't know the structure of actual regulator I don't have a feeling for these parameters, by default they were obviously set toooo low for this motor. This encoder was printed on friend's ultimaker, but now I got...
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    Cagiva Supermoto Bulid (4kW Legal)

    Kelly controler test Kp set ultra high 8wz2CtQqC8A
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    Cagiva Supermoto Bulid (4kW Legal)

    Kelly is mounted on the bike. Motor has sin/cos resolver so I had to make my own hall encoder. Aligning the encoder so it is in phase with the motor phases. Kelly had no torque at low rpm and slow response even with all current maxed out in settings. I tought Kp and Ki settings were not...
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    Cagiva Supermoto Bulid (4kW Legal)

    Didn't have time to update this before so here it is. Took out batteries from my bicycle. They were welded in three packs when I bought them. I disassembled everyhing, ripped appart all the welds from tabs and sanded them a bit for easier welding afterwards. Printed out formers so they match...
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    Cagiva Supermoto Bulid (4kW Legal)

    Kelly KLS-7230S just arrived. 72V 300A burst gonna put huge ass heat sink on it (btw my phase wires melted and shorted out on old controller. Controller is stil alive :) It had both side covers oppened and fan blowing air trough. That is why I finally ordered kelly) aaand.... it's a sine wave...
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    Cagiva Supermoto Bulid (4kW Legal)

    Yeah, was aware of small sprocket problem before bulit, but I didn't know it would be this bad. I aimed for high torque so that's why 13/90 sprockets. Belt was in plan before chain, but chain was a quicker solution. Now that I have more time and figgured out how to make huge rear belt pulley I...
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    Cagiva Supermoto Bulid (4kW Legal)

    Also, chain is ultra loud, like 2-stroke engine loud :/
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    Cagiva Supermoto Bulid (4kW Legal)

    Thanks man, you're the best :) :) Sevcon is still on hold, as I'm busy with other thing than this bike right now. This bicycle controller was getting prety hot, as it is hidden from air flow (below seat) so I opened both sides and added a fan, now it is ultra cold. Now I can shunt mod it a bit...
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    Cagiva Supermoto Bulid (4kW Legal)

    Yaaaay I got the papers/resistration :D
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    $14.99 72v Sunwin Controller

    I got 1500W one but it is 5,5kW actually and it only gets warm.
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    ixxat USB-to-CAN compact & Sevcon DLD flashing

    Where can I find cheapest IXXAT clone that will work with Gen4 Size2 ?
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    EU Road Legal Electrification (???)

    Hello I have done this right now https://endless-sphere.com/forums/viewtopic.php?f=12&t=93048&p=1361225#p1361225 It is conversion of an old Cagiva motorcycle to electric in Croatia, so if you have any specific questions fell free to pm
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