What Causes Oil Leakage in Motorcycle Brake Pumps?

[SanAriana]

Here are the reasons for brake caliper oil leakage: Damaged Rubber Cup: Cracks in the rubber cup inside the caliper can cause oil leakage, though the issue is generally not severe. Connection Gap Issues: Problems with the connection gap between the piston and the caliper inner wall (unevenness, foreign objects causing abnormal wear, etc.) may lead to leakage. Additionally, aging of the sealing rubber cup can also result in brake caliper oil leakage. Brake Fluid Quality Issues: Poor-quality brake fluid is another cause. Some car owners, trying to save money, purchase brake fluid from small shops where products often lack quality assurance. Moreover, using brake fluid that does not meet the required specifications and grade can also contribute to the problem.