almost every travel policy will say this in relation to bikes
personal liability is part of your third party cover for the motorcycle so they will not duplicate it. Run over a nun in Rome and she claims on the third party bike policy. Tread on a nun's habit whilst walking in Rome and she falls down some stairs then she claims on your travel policy personal liability.
in insurance underwriter speak, personal accident insurance is a specific type of cover for the lasting effect of an accident after you have been patched up by the separate medical cover. Many people confuse these two different types of cover.
Check your bike policy for personal accident cover, most have basic cover e.g. if you lose use of a limb or an eye but many have a bundled personal accident policy, just like you might have legal or helmet cover as separate elements.
The travel policy will provide medical cover after a motorcycle accident i.e. the ambulance costs, emergency room cover and treatment to get you well enough to go home even in a medivac aeroplane. It will also cover costs to get you home if you snuff it.