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  1. L

    Redesigned hubmotor for mid drive

    it is 51 slot, 46 pole motor, similar to mxus 3000.
  2. L

    Redesigned hubmotor for mid drive

    for some time I'm working for liquid cooled hubmotors (mxus analogue), and their performance looks good, so now I'm trying to make something different from that motor. Main thing is to make it for mid drive use, but with more power, thinking about it design something like big rc motors/emrax...
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    Neematic - 20kW middrive bike

    Hi there, nice to see discussion about our new project. It is hard to answer correctly some of questions, as we testing some different stuff and do not know exactly what would be in final product yet, but here are some details: - we do not use hub motor; - we also do not use any of standard...
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    MXUS 3000 Hub Motor - V1 V2 V3

    little miss understanding: I meant hubmotor, just as I know there was 3 stator versions, 1v was with stamped steel stator, 2v and 3v with aluminum, here is how looked v2: and this is v3: to make liquid cooling quite easy for V2 is possible (but need to mill stator, so to offer kit without...
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    MXUS 3000 Hub Motor - V1 V2 V3

    yes, for V2 is impossible to make copper because it will have corrosion with aluminum, I have couple ideas how to make it cooled also have idea to make different axle to fit standard DH bike through axle, but for now my whole time goes to new prototype of frame kits and bikes, and cann't spent...
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    MXUS 3000 Hub Motor - V1 V2 V3

    No, cromotor is made in QSmotor factory
  7. L

    MXUS 3000 Hub Motor - V1 V2 V3

    here is CAD drawing, it is simple with no accurate dimensioning, this axle fit to V1 motor, I do not know if it fits to V2 because do not have it. as for cooling, I made some cooling modifications for middle version of cromotor, or better to name it manufacturer name: QSmotor, it have very...
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    MXUS 3000 Hub Motor - V1 V2 V3

    Nice that you got my package, but you little bad understood my explanation about axle, it is made of good quality steel, but it milling finish is not perfect.
  9. L

    4Motus ebike/moto hybrid

    shimano bb92 is much lighter than standard 68mm BB, thats why is that decision. but if required 68mm bb can be made, it needs just additional part that presses in frame bb tube. Schlumpf drivetrain (wider version) fits to frame without problem.
  10. L

    4Motus ebike/moto hybrid

    Welding is made of professional (not me, I'm just beginner in welding), he have a lot experience welding aluminum, stainless steel, magnesium, titan and other materials. his quality is good and that's why I employ him.
  11. L

    4Motus ebike/moto hybrid

    here is new theme for stainless steel frames order: http://endless-sphere.com/forums/viewtopic.php?f=31&t=64334
  12. L

    4Motus ebike/moto hybrid

    rear shock mount hole is 8mm and 23.5mm inner width.
  13. L

    4Motus ebike/moto hybrid

    thanks for good words :) I do not weld my frames, it is done be professional welder :) as for steel frames, why some of you want steel frames instead aluminum? I worked a lot until get required aluminum strength after heat treatment and artificially aging, and it is almost same strength like...
  14. L

    4Motus ebike/moto hybrid

    :) GkfpyUo83oY
  15. L

    MXUS 3000 Hub Motor - V1 V2 V3

    axles are made with 2 side grooves, in one goes hall wires, in other goes pipes and hall/temp cable, axle diameter in that side is 30mm, so side cover is modified to fit bigger bearing ID-30, OD-42. axles are pressed to standard stamped steel stator. for now have just one picture of ussed...
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    MXUS 3000 Hub Motor - V1 V2 V3

    shipped to one customer in Germany :)
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    MXUS 3000 Hub Motor - V1 V2 V3

    somehow missed this theme :) I use similar motors on my bikes for more than half year till now, just I make some modifications for them to withstand my power: I change phase wires to 8awg silicone wires; I add temp sensor; I add industrial varnish on windings (whole motor stator is immersed in...
  18. L

    4Motus ebike/moto hybrid

    frame design is for 240mm max lengh, best will go ~220mm with 270 you need very big front fork, because other way it would be not stable in bigger speed.
  19. L

    4Motus ebike/moto hybrid

    2 layers would be possible if ordered custom battery case (standard case width is 123mm, so need ~20mm wider case), it adds 100euro to standard price. than I think would be possible to fit ~500pcs cells
  20. L

    4Motus ebike/moto hybrid

    depends on what controller you want to put inside and how arrange cells, 266-420pcs:
  21. L

    4Motus ebike/moto hybrid

    ES member crea2k frame with some additional parts before packaging:
  22. L

    4Motus ebike/moto hybrid

    frames can be: stainless steel (main frame and steel rear swingarm) aluminium 6061 alloy, main frame and swingarm (swing arm bearings included) battery box is totaly from aluminium. (all it fixing screws included) standard frame cover is powder coating, white frame and black swingarm. standard...
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    4Motus ebike/moto hybrid

    another one frame with some more components that was sent to customer:
  24. L

    4Motus ebike/moto hybrid

    some more info of battery box size: also there you can find it in real scale: http://i.imgur.com/N5ivarm.png
  25. L

    4Motus ebike/moto hybrid

    will be available two case sizes, one internal width will be 105mm, and second 124mm, will try to make photos internall look with more acurate dimmensions. motor is similar to zelenavozila, but we buy them directly from factory, also custom made stator and axle (in local company) for liquide...
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