kierkegaard wrote: ↑
Dec 04, 2017 12:21 pm
The only mistake Prodecotech made was in choosing a 250 W motor system that is not robust (Keyde). When is was working it was great, very quiet.
If the only problem is the motor, and you liked the way it worked before, I'd recommend just replacing the motor itself with a similar new one, such as the Q series, or small Bafang CST, etc. If you can measure the spoke flange diameter and spacing of your existing motor, and get those measurements of other similar motors, if they are the same then you can simply replace the actual hubmotor and not the whole wheel, relacing the spokes and rim onto the new motor.
ALternately, you can get small motors from places like Grin Tech http://ebikes.ca
, etc., already built into wheels.
I'd recommend verifying with whoever you buy from that the no-load RPM of the motor you're getting is similar to that of the one you're replacing.
Either way you can transplant the connector from the old motor to the new one, and if the old is sensorless then you don't even need to worry aobut anything but the three larger (phase) wires.
If the controller is integrated into the motor, then it might be the controller itself that's failed, not the motor, and in that case you can probably get an external controller that does the same functions, and just run the phase wires out to the new controller.
Then you will be back up and running with similar assist that you had before.