In general, a motorcycle license is required to operate a 50cc pocket rocket on the road if the vehicle is classified as a motorcycle. This is typically the case if the pocket rocket has a top speed of more than 30 mph or if it has an engine displacement of more than 50cc. If the pocket rocket is classified as a moped, a driver's license may be sufficient. Mopeds are typically defined as vehicles with a top speed of less than 30 mph and an engine displacement of less than 50cc.
In addition to a license, some jurisdictions may also require riders of 50cc pocket rockets to wear a helmet and other protective gear. It is important to be aware of all of the requirements in your area before riding a 50cc pocket rocket on the road.