Just got this Golden Motor mini rear hub this week. It seems to wobble like its got a bent axle or crooked bearrings. It doesn't sound like its running smoothly either...it lopes. Here's a video with the GM mini using an ecrazyman 24V/18A controller. It wobbles and sounds the same with or without the disc rotor (tried a couple), and with this controller, and another controller I tried.
[youtube]6BTMAFoT0Vw[/youtube]
[youtube]6BTMAFoT0Vw[/youtube]