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  1. M

    4kw QS hub motor - More power

    Thanks J bjork – I was thinking HDC was for brake regen for some reason, but you’re right, this was my issue. I now top out at 55-60km/h with 0 flux weakening (speed 2) And 80 km/h with flux weakening set to 3000 (speed 3) – which I now realise now is a little too high. I will reduce to 2300...
  2. M

    4kw QS hub motor - More power

    Thanks for the replies Jas67 – Super impressed by your build and have more hope now about what I can get out of the current motor! J bjrok – thanks for the controller suggestions. Enough torque to wheel stand would be a nice problem to have… I have gone back to QS to try to find out about the...
  3. M

    4kw QS hub motor - More power

    I have just got my hands on one of these manufactured by ZHEJIANG TIANYING– I am new to EV’s so I am really after a little advice to make sure I’m on the right track from what I have read on this forum already. From what I have been able to find out from the supplier the bike is fitted with...
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