Do Motorcycle Shock Absorbers Need Lubrication?
2 Answers
Motorcycle shock absorbers do not require lubrication as they come with their own built-in lubrication and do not need additional lubrication. Working Principle of Shock Absorbers: The working principle is that when there is relative movement between the frame (or body) and the axle due to vibration, the piston inside the shock absorber moves up and down, causing the oil in the shock absorber chamber to repeatedly flow from one chamber to another through different pores. At this time, the friction between the pore walls and the oil, as well as the internal friction between oil molecules, creates a damping force that converts the vehicle's vibration energy into heat energy of the oil, which is then absorbed and dissipated into the atmosphere by the shock absorber. Maintenance Methods for Shock Absorbers: After driving the vehicle on a rough road for 10km, stop and touch the shock absorber housing with your hand. If it is not hot enough, it indicates that there is no resistance inside the shock absorber, meaning the shock absorber is not working. In this case, you can add an appropriate amount of lubricating oil and test again. If the housing becomes hot, it means the shock absorber is low on oil and should be filled up. Otherwise, it indicates that the shock absorber has failed.
Regarding whether motorcycle shocks need lubrication, my experience is that most modern motorcycle shock absorbers are designed to be sealed, eliminating the need for users to lubricate them themselves, as this may damage the internal structure. If you feel excessive bumpiness or squeaking noises while riding, it might indicate a lack of lubrication or internal failure. Shock absorbers come in two types: hydraulic and gas-charged. Older hydraulic models may require periodic oil changes, but this task is best left to professional technicians. During routine maintenance, you can check the exterior of the shocks for signs of oil leakage or rust. Remember, shock absorbers are critical safety components that directly affect handling stability; if not repaired in time, you could lose control during high-speed cornering. I recommend having them inspected by a professional every 5,000 kilometers or so—don't cut corners to save trouble.
