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  1. R

    BAC8000 mosfet and capcitor replacement

    Hi, so I have a BAC8000 controller that survived a battery fire but the hall sensor do not work anymore so I opened the controller to see if it was repairable. Looking at it the control section of the controller seems to be too small to work on it. Then I got the idea that it could be possible...
  2. R

    crf450r 45kw race bike build

    Decided to show you my new bike build. My first one did not go has planned but I learned from it and ready to build version 2.0. The first bike: https://endless-sphere.com/forums/viewtopic.php?f=12&t=110469 The rmz felt a little slower than a 250 four stroke dirt bike. For this one I want 450cc...
  3. R

    qs 138 4000w vs zero 75-5

    Hi, Im in the planning phase of a new project and I am trying to decide what motor to choose. Im usin a bac8000 controller. With the qs 138 I was pushing 600 amp into it and I liked the power. I also have a prototype 75-5 motor which is 12 poles instead of 10 like the production motor. Im...
  4. R

    RMZ 450 electric conversion

    Hi, I wanted to show the bike I built this summer maybe it can give idea for a build you want to do. Bike: 2010 rmz 450 Motor: qs138 90h controller: ASI bac 8000 Battery: 20s20p molicell p26a with cell level fuse. 3.7kwh 6.23:1 gear ratio Right now I am at 450 battery amp and 600 phase amp...
  5. R

    battery current vs motor current

    hi, I am in the planning phase of building a custom Electric motorcycle. I will build a custom frame battery I plan on using a motenergy me1507 motor. Looking a the spec the peak current of this motor is 600 amp so if I understand correctly I will need a battery pack able to give 600 amp right...
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