The frequency of replacing motorcycle wheel bearings can vary depending on several factors, including the make and model of the motorcycle, riding conditions, maintenance practices, and the quality of the bearings themselves. However, as a general guideline, it is recommended to inspect and potentially replace the wheel bearings every 20,000 to 30,000 miles (32,000 to 48,000 kilometers) or at least every two to three years.
Regular inspection is important to ensure the bearings are in good condition. Signs that your motorcycle wheel bearings may need replacement include excessive play or looseness in the wheel, abnormal noise or grinding sounds coming from the wheels, or wheel wobbling.
In such cases, more frequent inspections and replacements may be necessary.
Ultimately, it's essential to refer to your motorcycle's owner's manual for specific guidelines and recommendations regarding wheel bearing maintenance and replacement intervals, as manufacturers may have specific recommendations based on their designs and engineering standards.