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  1. W

    s12s OPENSOURCE FIRMWARE settings

    Hello, I have bpm2 48v 500w motor, bmsbattery s12s controller, 48v battery and I installed new software by this guide:https://opensourceebikefirmware.bitbucket.io/windows_instructions/index4.html but the motor doesnt work good. I don't know what to put in Throttle min and max (I can check the...
  2. W

    Bafang BPM2 48v500w, s12s controller delay

    Hello, I have Bafang bpm2 48v 500w hub motor and bmsbattery sine wave S12S controller and when I pull the throttle there is a delay until the motor start working. On the LCD it shows that I pulled the throttle but still there is about 0.5 sec until it starts. How can I fix it ? Do you recomend...
  3. W

    Hub motor noise

    Hello, I have 24" bicycle with 36v 250w rear hub motor, 350w controller and 36v battery and I have a problem with the motor. When I push the throttle little bit and the I push it for full throttle the motor make terrible noise but if I push full throttle it runs smoothly without any problem. I...
  4. W

    Choosing a motor

    Hello, I am planning my next ebike with my Merida big 7 40 with 27.5" wheel and I dont know what motor to choose I will ride mostly in the city and maybe also off road trails. I want speed up to 45 km/h and because I ride in the city I have a lot of stops so I need fast acceleration. I thought...
  5. W

    27.5" rim

    Hello, I want to build a new e bike and I am searching for 27.5" bicycle. The problem is that all the bicycle I saw until now comes with 32 spokes and I need 36 to the hub motor. Is it possible to buy 36 spokes 27.5" rim ? This is the bicycle that I want to buy...
  6. W

    1000w/48v hub motor

    Hello, What do you think about golden motor: Model: HBS36R -- Rear Hub Motor (48v/1000w) ? Is it a good motor ? Do you know what will be the speed with 27.5" wheels ? I weigh about 75 kg you can see the motor here: http://www.goldenmotor.com/hubmotors/hubmotor-REAR_WHEEL.pdf and in the...
  7. W

    3 speed control

    Hello, I have this controller: http://www.banggood.com/36V48V-350W-Electrocar-Brushless-Motor-Controller-for-Electric-Scooters-Bikes-p-1029468.html?rmmds=myorder and I have "3 speed control" connection which is not connected to anything. My question is if the default setting is the the highest...
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