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  1. B

    Hub drive torque limitations. Steep hills while towing a child?

    After building several electric gokarts ranging from 350w to 13kw I'm now looking into building an ebike. My fast kart weighs 200lbs, I can't ride any of my karts outside of my subdivision, and I'd like something that I can go out further and tow my daughter behind me. I'm looking at rear hub...
  2. B

    For an electric kart, what is the relationship of torque and power?

    So I've have some good luck with my Razor Dune Buggy adult conversion. The Chinese 48v brushless setup has been tested at up to ~68v and the controller was modified to push ~50 amps. It currently propels the 300lbs of kart and rider to 30mph while still having good torque for getting up hills...
  3. B

    Is this a proper Motor and ESC combo for my project?

    Running weight will be under 400lbs with rider. Goals are at least 25mph top speed with the ability to also climb a 20 degree slope (so not giving up all my torque for top speed). I was told I would need ~7KW to accomplish this which I'm fine with. For batteries, I will use 14 24AH lithium...
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