What Causes Abnormal Noises in Motorcycle Shock Absorbers?
2 Answers
Shock absorber oil deficiency or leakage can cause abnormal noises in motorcycle shock absorbers. It is essential to promptly inspect the condition of the shock absorbers, and if the issue is severe, immediate repair at a service center is recommended. Generally, shock absorbers should be inspected every 100,000 kilometers, though maintenance intervals may vary slightly between different vehicle models. Function of Shock Absorbers: The need for shock absorbers arises because springs cannot stabilize immediately. After being compressed and released, springs continue to oscillate for some time. Shock absorbers help absorb vibrations caused by uneven road surfaces, enhancing ride comfort. Types of Shock Absorbers: Shock absorbers, also known as dampers, include hydraulic shock absorbers and mechanical shock absorbers. Hydraulic shock absorbers are further divided into single-tube and twin-tube types. Hydraulic shock absorbers utilize the compressibility of fluids and their ability to absorb energy during compression and dissipate energy during flow to reduce or eliminate vibrations.
I've been riding motorcycles for over ten years, and shock absorber noise is a common annoyance. The most frequent causes are aging or wear of the shock absorbers, such as broken oil seals in the shock tubes leading to leaks, or internal damper rods rusting, which creates creaking noises when going over bumps. Lack of lubrication is another major issue—dust and sand particles entering the joint areas can cause increased friction and noise over time. Loose screws are also common; if the shock absorber mounting points become loose, they can rattle and produce noise while riding. Regular maintenance is crucial—lubricate key points after washing the bike and periodically check the condition of the oil seals. If the noise gets worse, don’t delay—visit a professional repair shop, as this can affect riding stability, especially during high-speed turns, posing a safety risk that shouldn’t be ignored.
