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  1. 1

    Bafang ultra,how strong is it.Does it overheat?

    I am in the prosess of ordering av Frey ebike.But a lot of reading makes my hesitate.Many reviews say the motor is lazy and overheats easily.And many reviews says the opposite.So which is it? I already have a bafang bbs 36w 500w 25a and it needs to be significantly stronger than my Bafang bbs...
  2. 1

    New Torque sensing mid drive

    http://www.pswpower.com/ven.php?cargo.2019-bd-h9k5
  3. 1

    New 1000w Geared hub MXUS XFC19

    Hi, Just got my new Mxus XFC19 motor it is bigger than the bafang BPM and has bigger gear reduction,bigger and wider stator. The gear reduction is 1:5.8 weight is 4.7 kg Magnet width is 27 or 28 mm Most of the pictures are from this site and its a non casette version,but the rest of the motor...
  4. 1

    BMS defect or unbalanced cells

    Hi, My 36volt 19.2 Ah battery is not charging.I have disconected the bms and also charge the battery 10sec in the discharge pins. i have measured the battery cells and the highest one are 3.71volt and the lowest was 3.3 volt. Could this volt difference cause the BMSTo go into sleep mode or is it...
  5. 1

    How much sag to expect from 36v 20ah Q30 cells and 25 a controller

    I have a Bafang bbs 36volt 500 watt motor with 25a controller and a ebay battery with samsung 32 e cells 19,2 Ah It sags from fully charged to 38volt at full throttle.Is this to be expected or will a high quality lion battery with 30Q cells sag less?
  6. 1

    Mac 10 rear vs front overheating

    Since the new front mac motor has a heat bridge from the stator to the outside will it take significally more time to overheat a front mac motor than a rear casette version?
  7. 1

    NEW CRANK DRIVE 48V 250W AKIEMA

    Do you guys think this motor will have stronger torque curve with same current than bafang 250w bbs since it have almost twice the gear reduction ratio 1 : 38 and you can choose between 36v and 48v version. There is also a 500w version https://www.aikema.com.cn/en/product/MD-P250-02.html...
  8. 1

    Sondors X double tax? Export+ import tax?

    Hi I like the new Sondors X with 48v 17 ah battery.But I dont understand the taxes.when i put it in the shopping chart it says I have to pay 205 usd extra in tax.Is this an eport tax from US to Europe? If that is the case then I need to pay export tax plus impoert tax here in Norway.Is this correct?
  9. 1

    Tdsz2 vs bafang bbs

    Hi. I find little info about tdsz2 motor powervise compared to the bafang bbs.anybody compared the 250w versions hillclimbing and top speed against each other.Or the 48volts versio s against each other?
  10. 1

    MAC 10 sinwave controller setup problem

    Hi, I just got my mac 10 motor and connected it to an ebike tester and everything seemed ok.But the motor is lugging at low power,it gets better at max power but still noticable.The motor is extremly quiet,above 6kmh.like an bbs 02.Could it be that this problem is caused by wrong hallsensor...
  11. 1

    Thinner laminations=less torque?

    Hi I just ordered a Mac 10 which I will be running at 36v 20-25 a or 48v 20-25 a as a pedelec.I dont understand to much technical about the motor,but from what I have read here,the thinner laminations the better.So I ordered a new design Mac 10 casette motor with 0,27 mm laminations.Then I...
  12. 1

    Overheating Ezee vs Bafang Bpm/Cst

    From ebikes.ca simulator it shows that the Ezee motor can take about twice the time of an Bpm/Cst motor before it overheats.Why is that?.The motors are about the same size.Both have 22mm stator widht.Is the simulator correct?
  13. 1

    Sinwave controller on Mac 10 motor

    Hi, Anybody know if I can use this controler on a Mac 10 motor: http://www.pswpower.com/peng/iview.asp?KeyID=dtpic-2016-3F-33C0.50CGS
  14. 1

    Broken motor or controller?

    Hi I have a bafang bpm 250w with a S09P controller (sensorless).Two of the motor power wires from the controller. Blue and yellow had melted togther.When I separated the the wires,THe motor wont work.Is it anyway this could have damaged the motor? Or do I only need a new controller.
  15. 1

    Ezee vs Bafang BPM/CST

    Anyone tried both motors? (Ezee and Bafang BPM/CST) I would like to know how the noise on the ezze motor is compared to the bafang BPM/CST and also the torque diffrence.
  16. 1

    climbing ability bafang bbs 750 vs mac 12

    Hello, I cant decide if I should buy a mac 12 or a bbs 02 750w.I will use the motor on max 20% hills.the hills are short max 0,5 km(pavement).if both run at 48v 25 amp which one will be the fastest in hill climbing.I dont need topspeed more than 25 kmh
  17. 1

    No spare parts for bafang bbs 02 ?

    I tried to get a new controller for my bbs 02 48v 500w version.The motor does not work pproperly.It only draws max 6 ah. and I can easily hold it back with my feet on full throttle on the flat.The motor has less power than a normal 250 hub. So I thought it had to be a controller problem and...
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