YESOUL V1 Manual De Producto página 14

How to Adjust Bike
3. Horizontal adjustment of saddle:
Loosen the knob under the saddle, slide the saddle back and forth to the desired position, and
tighten the knob as much as possible.
Horizontal adjustment of saddle
Tight
Loose
4. Body level adjustment:
There are four adjustment pads at the bottom of the front and rear pedal tubes. Screw these pads
until they are tightly secured on the floor and the body does not shake.
High Low