This is the Hobbywing 5250 motor for Tynee board Ultra/Pro/Mini.
It is produced by the well-known manufacturer hobbywing, with high precision, strong power and good quality. The power is 600W each.
At the same time, you can also buy it to make DIY skateboards.
The number of teeth of different board is different, Ultra is 14 teeth, Pro and Mini are 15 teeth.