It classifies vehicles with fewer than four wheels into the following categories: California Īs of 2020 the US state of California has a regulatory system for 2- and 3-wheeled vehicles. However, while NHTSA excludes the term motor scooter from legal definition, it proceeds, in the same document, to give detailed instructions on how to import a small motor scooter. Though some jurisdictions classify smaller engine scooters (typically 50 cc or 3.1 cu in maximum) as moped class vehicles rather than motorcycles, meaning these scooters often have less stringent regulations (for example, 50 cc scooters can be driven with a normal car drivers license - or by adults aged 18+ years without any license (other than a valid liability insurance) at all as in case of at least Denmark - in many jurisdictions, and might pay less road-tax and be subject to less stringent roadworthiness testing).įor all legal purposes in the United States of America, the National Highway Traffic Safety Administration (NHTSA) recommends using the term motorcycle for all of these vehicles. Some jurisdictions do not differentiate between scooters and motorcycles. Many recent scooters use conventional front forks with the front axle fastened at both ends. Traditionally, scooter wheels are smaller than conventional motorcycle wheels and are made of pressed steel or cast aluminum alloy, bolt on easily, and often are interchangeable between front and rear. Scooters have varying engine displacements and configurations ranging from 50 cc (3.1 cu in) single-cylinder to 850 cc (52 cu in) twin-cylinder models. There is often some integral storage space, either under the seat, built into the front leg shield, or both. Scooters usually feature bodywork, including a front leg shield and body that conceals all or most of the mechanicals. Modern scooters starting from the late-1980s generally use a continuously variable transmission (CVT), while older ones use a manual transmission with the gearshift and clutch control built into the left handlebar. Unlike a conventional motorcycle, in which the engine is mounted on the frame, most modern scooters allow the engine to swing with the rear wheel, while most vintage scooters and some newer retro models have an axle-mounted engine. This design is possible because most scooter engines and drive systems are attached to the rear axle or under the seat. The classic scooter design features a step-through frame and a flat floorboard for the rider's feet. The US Department of Transportation defines a scooter as a motorcycle that has a platform for the operator's feet or has integrated footrests and has a step-through architecture. The Shorter Oxford English Dictionary defines a motor scooter as a motorcycle similar to a kick scooter with a seat, a floorboard, and small or low wheels. The term motor scooter is sometimes used to avoid confusion with kick scooter, but can then be confused with motorized scooter or e-scooter, a kick-scooter with an electric motor. Licensing requirements for scooters are easier and cheaper than for cars in most parts of the world, and insurance is usually cheaper. Scooters are popular for personal transportation partly due to being more affordable, easier to operate, and more convenient to park and store than a car. Maxi-scooters, with larger engines from 200 to 850 cc (12 to 52 cu in) have been developed for Western markets. The original layout is still widely used in this application. These scooters were intended to provide economical personal transportation ( engines from 50 to 150 cc or 3.1 to 9.2 cu in). The global popularity of motor scooters dates from the post-World War II introductions of the Vespa and Lambretta models in Italy.
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