The appropriate octane rating for your motorcycle depends on the specific requirements and recommendations of the manufacturer. It is always best to consult the owner's manual or contact the manufacturer directly to determine the recommended octane level for your motorcycle.
In general, motorcycles with higher compression ratios or performance-oriented engines may require higher octane fuel to prevent knocking or pinging. However, if your motorcycle is designed to run on regular 87 octane fuel, using a higher octane fuel like 93 may not provide any significant benefits and could be an unnecessary expense.
Using a higher octane fuel than required by your motorcycle's engine does not typically provide any performance improvements or fuel efficiency gains. It is important to follow the manufacturer's guidelines to ensure optimal performance and reliability of your motorcycle.