My problem is that the gear reduction is 1:8 and the wheel diameter is 1.32 meter, so i need a small 3-5Kw motor that runs 6600 rpms at 48Volt, then my topspeed will be 67Km/t
I'm there too, my express has like 12.5 to one ratio (& 20inch tires). I'm just gonna go with chain and sprockets though, since I already have the motors.
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