The best for what? What kind of riding are you doing? What kind of motorcycle are you doing it on? What is your budget? All of these questions will help you narrow down your search. There is no best helmet for every situation. All too often people assume the most expensive, highest-grade helmet is the best. Those expensive helmets are expensive because of the R&D that has gone into making them extremely aerodynamic, extremely light, and extremely protective. Protection everyone wants but a new rider on his Versys-X 300 perhaps doesn’t need a carbon fiber race helmet even if he can afford it. Fit is as important as anything else. Decide on your main use for the helmet and go from there.