What Causes the Rear Wheel of an Electric Vehicle to Make Strange Noises and Shake?
2 Answers
Electric vehicle rear wheels making strange noises and shaking are generally caused by demagnetization of the electric motor. The most direct factors leading to motor demagnetization are high temperatures and water ingress causing rust. Below are solutions for high temperatures and water ingress causing rust: 1. High temperatures: (1) When parking the electric vehicle, it is best to park it under a shade to prevent prolonged direct sunlight exposure to the motor; (2) Avoid overloading the vehicle to prevent rapid battery consumption and excessive heat generation. 2. Water ingress causing rust: (1) Avoid driving the electric vehicle through water to prevent direct water ingress and rusting of the motor; (2) After riding in the rain, promptly wipe the motor to prevent residual moisture from entering; (3) Do not store the electric vehicle in a humid environment to prevent moisture from entering the motor.
I ride an electric bike to work every day, and the rear wheel making strange noises and shaking is usually due to aging or damaged wheel bearings. Worn-out ball bearings inside can cause a clicking sound, making the wheel unstable like it's dancing. It could also be a problem with the braking system: for example, if the rear brake pads are worn thin and stuck, they can cause severe shaking when braking. Also, check the tires: if the rim is bent or the tire pressure is too low, the bike will wobble badly while riding. I suggest not ignoring these safety signals—stop immediately to check if the wheel rotates smoothly. If not, go to a professional shop to replace the bearings or adjust the brakes. Don't wait until you're stranded on the road and risk injury.
