Feickert Virtesse Motor: Anyone tried this or other brand motor replacements?

[banpuku]

Hi, hope all is well.

I am looking at the Feickert Virtesse motor/controller. Curious to learn if anyone has heard it and can share their observations. I am most curious about any vibration that can be heard by the ear or via stethoscope.

Also, are there other 3rd party, after market motor replacements that are recommended? Any input would be greatly appreciated.

Feickert Virtesse

Thanks!