i'm trying to compare to motors, the first is from ecospeed (on the left) , and cost around 500-600$ the second is from CogHog for around 180$, the first should be able to handle about 1000-1300 watts, while the second is only rated to be 600..
the only major difference i see is that the windings on the left (ecospeed) is thinner then the ones on the right, so could that make a difference?
Trek 7.7 fx, 22.5" frame, 38x700c,10 gears.
ecospeed mid drive 1300 watt engine, max speed 45 kph.
battery1: 48v 14 ah, frame mounted battery, range 40km.
battery2(spare) 52v 10ah frame mounted bag, range, 30km.