Puma CST or Banfang CST for KT controller?

genclone

Finding my (electric) wheels
Dec 9, 2016
5
0
36
Munich
My q128c (9rpm/v) mounted in a folding bike with 20 inches wheel is trashed. It just stopped running and it is making strange mechanical noises even unplugged.

I was powering it with a KT controller that I adapted for 52V/20A (14S battery).

It did not last long, maybe 1000-2000km.... So I am looking for a stronger alternative that I can still use it with this controller.

Which one would it be better for my setup? What is the erpm that I should be looking at, to avoid problems with this controller?

thanks!