Overview of the Motorized Bicycles and their differences from Mopeds and Motorcycles

Introduction to Motorized Bicycles

A motorized bicycle is a bicycle with an attached motor or engine and transmission used either to power the vehicle unassisted, or to assist with pedalling. Since it sometimes retains both pedals and a discrete connected drive for rider-powered propulsion, the motorized bicycle is in technical terms a true bicycle, albeit a power-assisted one. They are typically incapable of speeds above 52 km/h (32 mph), however, in recent years larger motors have been built, allowing bikes to reach speeds of upwards of 72 km/h (45 mph). Motorized bicycles formed the prototype for what would later become the motor-driven cycle.

Real-World Examples: The American Whizzer

The Whizzer bicycle engines produced in the United States from 1939 to 1965 were popular examples of motorized bicycles. They were commonly sold as kits to be assembled and attached to a consumer's bicycle thus creating a motorized bicycle. Whizzer U.S.A. re-appeared in 1997 to sell an improved version, pre-assembled on an old Schwinn-style bicycle frame. The Whizzer's Sportsman model, with a 138cc, 3hp engine, 20" wheels, a kickstarter, and drum brakes, was released in 1949.

Understanding Mopeds

Mopeds are similar to motorized bicycles as they combine pedal power and engine power. However, mopeds usually have engines less than 50cc. They are popular because they are easy to ride, don't require a specific motorbike licence, and are often cheaper than other motorized two-wheelers. However, the term 'moped' should not be confused with motorized bicycles or motorcycles, despite the functional similarities.

Insight into Motorcycles

Motorcycles also belong to the category of motorized two-wheelers but they differ significantly from motorized bicycles and mopeds. A motorcycle is purely powered by an engine or an electric motor. There's no option for pedal power in a motorcycle. They are designed for speed and long-distance travel, offering more power and larger engine sizes than both motorized bicycles and mopeds.

Comparing Motorized Bicycles, Mopeds, and Motorcycles

Motorized bicycles, mopeds, and motorcycles all belong to the same family of motorized two-wheelers but tend to serve different purposes. Motorized bicycles may retain pedals and offer both motor-assisted and manual pedalling, serving effectively as ordinary bicycles with an extra boost. They maintain bicycle features and are designed for those who want a power-assisted ride. They're best used for shorter trips in urban or suburban environments.

Mopeds, though similar to motorized bicycles in function, usually come with smaller engines (usually less than 50cc) and enjoy some legal exceptions in certain jurisdictions; they are often regarded as an in-between form of transport, more powerful than motorized bicycles but less capable than motorcycles.

Motorcycles, on the other hand, do away with pedal power and rely solely on engine power. They often come with significantly larger engines and are capable of much higher speeds and better suited for longer distances.

The American Whizzer stands as a unique historical example of a motorized bicycle. Introduced in 1948, it offered an affordable, pre-assembled, engine-equipped bicycle that still retained the core features of a conventional bike.

Conclusion

Each type of motorized two-wheeler caters to specific needs and preferences. If you appreciate being able to pedal manually while enjoying an occasional power boost, a motorized bicycle like the iconic American Whizzer could be for you. If you're looking for slightly quicker commutes and the ability to navigate easily through urban traffic, a moped might fit the bill. However, for long-distance travel, superior speed, and more powerful engines, a motorcycle is undeniably the most suitable choice. Each type has its unique history, application, and value in the world of two-wheel transportation.