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  1. J

    Need advice QS 3000 hub motor build

    Hello can anyone offer any help or info on a belt drive setup for a qs 138 70h. I have been searching all over the net and cannot find a source for a rear belt sprocket (pulley) for a wr450. I have not come across any builds using belt drive either. I really would like to avoid noisy chains.
  2. J

    Anyone familiar with this ML7280 clone?

    For those of us who have no idea what you all are talking about, is this a good controller for a beginner to upgrade to, I saw a similar looking one on amazon (80a) an would like to know if it would be a good buy for a 1500w ebike. Its the cheapest 80a sinewave i have seen.
  3. J

    Need advice QS 3000 hub motor build

    Just checked that out, for my first build that seems a bit much, if i start at the top then i don't get the joy of the upgrade chase. this is a great hobby i would like a few years out of it lol.
  4. J

    Need advice QS 3000 hub motor build

    Thank you all very much. I am about to order i have decided on the 5000w v3 hub motor without the rim and the sabvoton 72150.
  5. J

    Need advice QS 3000 hub motor build

    Perfect this is just what i was looking for. Your specs are very close to mine except for the wheel size. I will get the 5000w motor because i will be using a larger wheel.
  6. J

    Need advice QS 3000 hub motor build

    Great info, no off roading, and no cheap rims lol. thank you
  7. J

    Need advice QS 3000 hub motor build

    The bike is a commuter but i was hoping to do a little weekend trail riding, but its not a necessity. wow that is a lot of power from that motor now i really want to get it.
  8. J

    Need advice QS 3000 hub motor build

    Ok I looked into that controller a bit, I will get that one instead.
  9. J

    Need advice QS 3000 hub motor build

    That is a good point.
  10. J

    Need advice QS 3000 hub motor build

    Hi do you have any particular reason why you would not use a hub motor, i considered a mid drive but unless i use a belt drive they are way to noisy.
  11. J

    Need advice QS 3000 hub motor build

    Thank you for the advice, that one looks perfect for my second build (cbr 900rr) much heavier than the dirt bike but that will be a few months away (just started the battery). I would like something with spokes because i like the dirt bike look and would like to use my current rim and tyre, the...
  12. J

    Need advice QS 3000 hub motor build

    Hello I am converting a 2004 yamaha wr450f to electric and would like to know (real world) how would a qs 3000w hub motor (not v3) perform on this bike. I would like to know what speed I can reach using 72v battery (A123 cells 16p config) 300a bms, savoton 100a controller. The bikes weight is...
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