threewheeler

A threewheeler is a light vehicle built with three wheels. It can be powered by an internal combustion engine, electric motor, or human pedaling, and is used for transporting people or goods. Three-wheelers are distinguished from bicycles and quadricycles by the number of wheels.

Two basic wheel layouts are common: delta, with one wheel at the front and two at the rear, and tadpole, with two wheels at the front and a single wheel at the rear. The configuration affects stability, steering, and load distribution. Some three-wheelers have two-wheel drive on one axle; steering may be accomplished by handlebars or a steering wheel.

Uses: In many Asian and Latin American countries, three-wheelers are common as affordable urban transport, for passenger service (auto rickshaws or tuk-tuks) and for light cargo (cargo trikes, small delivery vehicles). Notable examples include the auto rickshaw in India and Southeast Asia, and the Piaggio Ape light commercial vehicle. In other markets, three-wheelers are produced as niche automobiles, such as the Morgan 3-Wheeler, or as sport or recreational vehicles. Non-motorized three-wheeled cycles exist as hand-pedaled trikes for mobility.

Regulation and market: Three-wheelers are often registered and taxed differently from four-wheeled cars, sometimes classified as motorcycles or lighter vehicles, with corresponding licensing, insurance, and safety standards varying by country. In some cases, more advanced safety requirements apply to passenger-carrying devices.

Trends: The market includes a growing share of electric three-wheelers aimed at urban mobility and last-mile delivery, especially in congested cities with limited space.