How Much Shock Oil Should Be Added to a Motorcycle?
2 Answers
GN125 front shock oil volume is between 150-170 milliliters. Alternatively, you can compress the front shock completely before installing the spring, then fill it with oil to the top, and finally pull up the shock and secure the upper screw cap. This method will also achieve a basically normal oil level. To adjust hardness: If you want to change its hardness, you can do so by adjusting the amount of hydraulic oil added. To make the shock absorber harder, add more oil; to make it softer, add less. However, the entire process requires repeated testing, and the amount added to both shock absorbers must be exactly the same.
As a seasoned rider with years of experience, I believe motorcycle suspension oil levels require special attention. The appropriate amount typically ranges between 80 to 150 milliliters, depending on the bike model—street bikes might need around 130ml, while off-road bikes may require a bit more. In my younger days, I didn’t pay much attention and once added up to 200ml, resulting in suspension as stiff as a rock, making my hands go numb over bumps. Later, I learned to consult the user manual, which always provides precise recommendations, avoiding guesswork. Incorrect amounts can lead to discomfort if overfilled or dangerous softness if underfilled, especially on rough terrain. When doing it myself, I always use a syringe to measure meticulously, ensuring not a drop is off. Regular maintenance also includes checking oil seals for leaks to extend component lifespan. New riders should start with the manual—don’t cut corners by guessing, as this affects both safety and comfort. Remembering these small details makes every journey more secure.
