I think the definition of a "light tour" in marketing speak is what's commonly called a credit card tour. You carry a change of city clothes and you rely on your credit card to eat at restaurants and to sleep at hotels, inns, etc. The good news is that with lightweight gear and an adventurous spirit, any bike, including yours, could be used for an unsupported tour, where you carry camping and cooking equipment and are generally more self-reliant.