AMSOIL Synthetic Motorcycle Oil provides premium protection for the unique demands of big cruiser bikes, ensuring cool operation and reliable protection and performance, both on the open road and in stop-and-go traffic. Also, AMSOIL synthetic motorcycle lubricants provide the ultimate performance for sport bikes, decreasing performance-robbing friction for maximum horsepower, wear protection and keeps your bike running smooth and strong on the open road, providing maximum protection, performance and fuel economy.