HUB motor comparison

[scooter2012]

I'm wondering about how hub motors compare...specifically the BMC V2, V3 and V4 (rear) hub motors. I want power more than speed but mainly I want a motor that doesn't die. Any opinions out there?
Thanks all.

 

[kentlim26]

Bmc all are gears motor. my believe is a Non - gear motor will be more reliable and much harder to die. The simple HUb motor without gear doesn't show it weakness in power and troque . It has good power, pick up, speed. i think my hub motor of 48v 1000w is hard to die, no worry of gears has expired and need to replace the internal gears.

ken

 

[biohazardman]

I ran my V2s at 66V and 20- 25A with 6K on and off road with no failure, although I did upgrade the wires and gears to near the newer V3 standard, and 1K on another V2T at the same voltage and amperage. So up to the 1600-1800W levels these seem to hold up fine. The V3 motors have a low wind count and are harder on controllers. This link might answer some of your questions. http://www.electricbike.com/bmc-hub-motor-review/ but remember the V2 comes in the S=speed and T=torque versions. Heat is your enemy with these motors if you design and ride with that thought they will last. edit a little more info here http://www.sdelectricbike.com/BMC_MAC_BAFANGhtml.html

 

[scooter2012]

I had a v4 that burned out and am trying to figure out whether to replace it with a new V4, a V3 or the older V2.
I figure new, improved is better (?)

 

[The Mighty Volt]

If I had to recommend a motor, right now, gun to my head, I would say the 1000w Mac Geared from cell_man.

1. Lightweight.

2. Powerful.

3. Robust.

4. Not too expensive, and not unique either. Plenty of after-sales support, plenty of build-threads, plenty of do-and-don'ts

 

[scooter2012]

I have to get a BMC...IT CAN BE A v2 , v3 OR V4.