Typically, the brake fluid in motorcycles should be replaced every two years, regardless of mileage.
Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time, which can lead to reduced brake performance. Therefore, it's crucial to change the brake fluid periodically to maintain optimal braking efficiency and safety.
To ensure accurate information, refer to your Royal Enfield Himalayan owner's manual or consult a certified Royal Enfield service center for the manufacturer's recommended maintenance schedule and guidelines specific to your motorcycle.