I've been waiting for more data to accumulate before starting a thread comparing all the motors I've had. But here is the basics on the 'Fusin gearmotor, the Aotema dd motor, and the E-BikeKit motor. All run on the same 36v battery. 2100 miles on the aotema, 600 miles on the Fusin, 130 miles on the E-BikeKit.
Aotema is fastest, about 3mph, top speed 24 mph. And the simplest, with no hall sensors. It's a bit slow for the first 5 mph, but takes off by 10 mph.
E-BikeKit has the fastest acceleration, and better hill climbing performance than the Aotema. Better efficiency than the aotema, 21 mph top speed makes it 3 mph slower, so it gets the efficiency from slower speed. At the same speed, they may be equal in efficiency, but I haven't done the test yet. 48v would pep it up in the top speed of course.
The Fusin kit is the tourqiest , and can climb steeper hills since it is a gearmotor. A 350 watt kit, it is very efficient, it takes off a bit slow, but can get up to 20 mph eventually. The low wattage makes it slow on hills or into the wind. This motor is also said to really improve in the 48v version, that has a higher amp controller. I need to try this one with a higher amp controller sometime. I bet it would be great at 700 watts.
Just heading out for a ride till the pack dies range test, on a standard route I use for comparing to others. Results will post soon but you will have to look for them on that first post with all the other stuff.
Edit, holy crap! I just rode 30.6 miles full throttle on a 20 ah 36v pingbattery. 98% of the ride was at 19.5 to 21.5 mph. Very light pedaling, only adding at most .5 mph to the speed, and 400 feet of vertical on the route. Wind 7 mph.
Thats better range than the Aotema by 8 miles. Size does matter, the larger diameter motor is a definite advantage in tourque, and apparently efficiency too.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.