Mobil 1 Synthetic Oil
Arguably the best synthetic motor oil for your car or truck, Mobil 1 94001 Synthetic 5W-30 Motor Oil also makes a darn fine motorcycle oil for your bike engine. Mobil 1 synthetic will be the easiest motor oil to find for your motorcycle needs, yet it will cost a bit less than the top grade of synthetic motorcycle oils out there.
Regardless of the fact that it is made for automotive and truck use, it is still a synthetic motor oil and it will give any bike engine all of those synthetic properties. That means it will reduce wear and friction while slightly increasing gas mileage and performance.
Although not a true motorcycle engine oil, many people use this in their bikes and will use nothing else. Couple that with the aforementioned price compared to strictly synthetic motorcycle oils, then add in the fact that it's available almost everywhere, and that makes Mobil 1 Synthetic Engine Oil one of the best engine oils to use in your bike.