I have no backinfo, but the talk in the video sounds Chinese, and the writing on overhead signs looks Chinese.
The dashcam footage from a vehicle traveling down a road at night captured the moment a speeding motorcyclist hit a road sign and went spinning through the air.
Note how that other vehicle just drove past the biker, showing no intention to stop. That’s got to be China.
Props to Best Gore member @natural-selection-2 for the video: