Legal Question in Personal Injury in Missouri

A motorcycle is no different than a car, in repsects to the question you asked. If one allows another to use their motor vehicle, then carry a burden of not being reckless or negligent in doing so. If you know or have reason to know that he is going to use the vehicle in a reckless or unreasonable manner that could cause injury or loss to another, you coudl be liable to the person so injured. That is why you have insurance. If your policy coverage is adequate to cover most injuries or property loss that could be caused, then you probably have little to worry about. But, never allow him to use the bike while he is drunk or high. You could be personally responsible for losses that exceed your insurance coverage.

Good luck