What Causes the Rear Wheel of a Motorcycle to Make Abnormal Noises?
2 Answers
Abnormal noises from the rear wheel of a motorcycle may be caused by poor clutch engagement, possibly due to excessive or overly viscous engine oil. Below is an introduction to the functions of tires: 1. Support the entire weight of the vehicle: Bear the load of the vehicle and transmit forces and moments in other directions. 2. Transmit traction and braking torque: Ensure good adhesion between the wheel and the road surface to improve the vehicle's power performance, braking performance, and passability. Together with the vehicle suspension, tires help mitigate impacts encountered during driving and dampen the resulting vibrations. 3. Prevent severe vibrations and premature damage to vehicle components: Adapt to the high-speed performance of the vehicle and reduce driving noise, ensuring safety, handling stability, comfort, and energy efficiency.
As a motorcycle mechanic with over a decade of experience, I've encountered numerous cases of rear wheel noise, mostly stemming from chain looseness or wear. A loose chain produces a clicking sound during operation, especially noticeable when turning; if the chain is rusty or lacks lubrication, the friction noise becomes more piercing. Another common issue is bearing damage, which creates a low humming sound and makes rotation less smooth. Worn brake pads or small stones stuck in them can cause squeaking during braking. Loose hub nuts may also lead to noise, particularly with a jarring sensation during sudden acceleration. I recommend checking chain tension and lubrication before each ride, regularly maintaining bearings and brake pads, and addressing any unusual sounds promptly to prevent wheel imbalance from causing more severe malfunctions—safety comes first. After parking, feel the wheel temperature by hand to check for abnormal heat buildup.
