Why is the motorcycle chain making a constant brushing sound?
2 Answers
Motorcycle chain making a constant "brushing" sound may be due to poor coordination between the chain and the sprocket or insufficient lubrication of the motorcycle chain. Below are detailed explanations of the possible causes: Chain and sprocket insufficient lubrication causing noise: If the coordination between the chain and the sprocket is poor, friction may occur between the chain and the sprocket while riding, leading to abnormal noise from the chain. Solution: This situation cannot be adjusted by oneself, and the process of replacing the entire chain and sprocket set requires professional handling. Forcing an adjustment may lead to more significant malfunctions. Motorcycle chain insufficient lubrication causing noise: Due to insufficient lubrication, the chain may experience friction or even get stuck, inevitably causing abnormal noise while riding. The owner should promptly inspect and clean it to avoid the chain coming off during the ride. Solution: If the inspection reveals that the issue is due to insufficient lubrication, adding lubricating oil is necessary. This problem can be resolved by oneself.
My motorcycle-riding buddy has the same issue. The chain making a swishing noise is mostly caused by it being too loose or too tight. Incorrect chain tension leads to friction and noise while riding. Regularly check the chain tension with a tool, keeping the gap around 20-30mm. Lack of lubrication is another culprit—dry chains make more noise, so applying chain oil helps, especially after rainy seasons when rust is likely. Additionally, worn-out chains or damaged sprocket teeth can cause loud noises; old bike chains should be replaced when needed. Ignoring these issues risks chain breakage—safety first! Always inspect before riding to avoid regrets on the road.