I bought this bike a month ago, but it sounds like the hub is going to fall apart. Is there anyone who can identify the cause with the posted video The wheel is not hit, and the caliper has been adjusted. When you stop the motor and pedal while driving, the sound is quiet. The spokes are tight.
It seems that the sound of the magnet is out or one of the gears is damaged. You should send this video to the warranty service. The hub motor makes some noise, but it doesn’t sound like that.
I’m an idiot, you meant planetary gears..
Hey, Welcome to the forums ya’ll 
Okay, what sounds do you think will sound if you turn the handle in the opposite direction
It sounds pretty normal to me when I spend the wheel backwards
I understand. The only other option at the moment is to remove the rear wheel and check the inside of the hub motor. Otherwise, you should try to replace the motor or motor integrated wheel within the warranty period. Does that sound when the load is on (running, climbing the slope, etc.)
When the load is applied, the sound seems to be louder at low speeds… probably because the sound is scraped out by the road noise at high speeds. We are trying to respond to the warranty. How do I disassemble a case of a hub with a phase line on the rotor side
All the hub motors I used could be disassembled by removing the wheel and removing the case bolt. Since there are countless variations of the motor, your own may be different. Try searching on YouTube. There are many videos about this matter.
I hope you are dealing with the factory. I had trouble with my new bike controller and they were pretty fast on getting me parts
Yes, yes. I’m not in a hurry right now… because it’s too cold outside. It’s been another week. Should we use automotive grease when installing hub motors, or should we use PTFE-based lubricants I want you to return the old hub.
I agree but sounds more like missing tooth on one the internal gears.
Apparently my hub motor is delayed at customs due to mismatch in the product description. In Alaska.
But when installing the brake rotor, the hole for the rotor bolt was too small and the bolt could not be completely tightened, and the screw pile of the bolt was crushed… Now, I am buying a tap set and a new M5 rotor bolt…
I don’t know, but I got a replacement. But the hole in the brake rotor was too small. When the new motor arrived, I unloaded the engine, but when I tried to rebuild it, I couldn’t re-install everything because of the hole in the rotor.
No, not at all. I had to buy taps and die sets to install correctly. In addition, two of the original rotor screws had their heads cut, so they had to buy new screws. It seems that the depth of the hole was not enough. The screw size is M5 x 0.8. Murphy’s law always applies.