How is a piaggio zip restricted?

A Piaggio Zip is often restricted to limit its top speed and ensure compliance with regulations for learner riders or specific licensing categories. This restriction can be achieved through various means, such as limiting the engine's power output, adjusting the carburetor settings, or installing a restrictor plate in the exhaust system. Riders can typically remove these restrictions to unlock the scooter's full potential, but this may require adjustments to maintain safety and legality. Always check local laws and regulations before modifying a vehicle.