Installed a 1.5KW Golden motor (model 108) https://goldenmotor.bike/product/1500w-bldc-motor/in a home built 48V rig.
tried 2 Votols (EM50S & EM150), and a Kelly KLS 7218N, but can not make these combos sync.
free spinning on a jack, works great, but once under load, the motor is cogging &...