There is a colorful knob on the beam of the bicycle, which can be turned to adjust the resistance. Twist the resistance clockwise, reduce the resistance counterclockwise, and press the emergency brake. I want to remind you that riding, especially standing riding, must ensure a certain resistance, otherwise it is easy to cause setbacks and injuries to your knees and ankles (that is, your ankles). When you sprint on the mount, once you feel exhausted, you must step on the brakes immediately, otherwise it is very easy to cause leg muscle strain, and even the pedal strap will fly off and hurt your leg.