Good Evening all!, I currently have a Fiido D1 that has developed a problem with a lot of play or movment in the frontend, especially when braking on the front.
You have to determine whether the movement is coming from the folding mechanisms or from the steering heard bearings that are just above and below the steering tube. The steering tube is the tube on the very front of the main frame.
Both the folding mechanism and steering bearings are adjustable.