What is the reason for the shaking of bicycle pedals?

There are four reasons for pedaling:

1. Crank hole slide wire.

2. Pedal screw slide wire.

3. The axle of the pedal is broken.

4. The fixing screws are not tightened.

Check how the pedals of the bike shake:

1. Use your hands to shake the pedals up and down to observe whether the joint between the pedals and the crank is loose or the pedals are shaking up and down the central axle.

2. If the joint is shaken to see if it is not tightened, tighten it. If it cannot be tightened, it is the sliding wire. Remove the pedal to observe whether it is the sliding wire of the crank hole or the sliding wire of the pedal screw, and change the crank or the pedal.

3. If the pedal shakes on the central axle and the central axle and crank do not move, the pedal bearing is broken. Remove the bearing and replace it or replace it with a new pedal directly.