Bafang climber-bpm series

[1-track-mind]

I can't seem to find much info on this motor, but it seems like a good candidate for the rear wheel on dual drive.
Light,quiet,sensorless,inexpensive...what's not to like about this motor ?

 

[TPA]

It was reported a little slow at 48V (36 kph or 22.4 mph), but with heaps of torque. I think you can get faster versions of the motor though.

http://endless-sphere.com/forums/viewtopic.php?f=3&t=12582&p=199870&hilit=+bpm#p199870

Also it has the nylon gears to worry about.