Motorcycle

A motorcycle is a two-wheeled vehicle powered by an engine. The rider sits on a central seat and operates handlebars to steer the front wheel. The motorcycle's stability depends on the rider's balance and movement, unlike the three-point support of a car.

Motorcycles are used as personal transport, for commercial delivery, by police and ambulance services, and in racing. Because they are small and fuel-efficient, they have become the most common form of transport in many crowded cities, making them part of public transport systems, often operating as taxis under various local names.

Main Components

The main parts are the engine, the power transmission (gears and chain, belt, or shaft), the metal frame structure, wheels and tires, the braking system, and the road suspension system. Most engines are internal combustion engines running on petrol, but electric models powered by batteries are increasing. Engine power is measured by engine displacement (such as 125 cc or 250 cc) and horsepower.

Types

Motorcycles are classified by use: standard street bikes, off-road bikes designed for rough terrain, touring bikes equipped with luggage boxes and windshields for long journeys, and sport bikes. Scooters—which have small wheels and an engine positioned low—are sometimes placed in the same category, though their design differs.

Safety

Motorcycle riders and passengers face greater injury risk than car occupants, as there is no protective shell around the body. Safety equipment includes a helmet, protective clothing, gloves, and boots. Many countries legally require helmets and mandate special riding licenses for motorcycles.

Brief History

The motorcycle emerged from a combination of the bicycle and small engine in the late nineteenth century in Europe. Large-scale motorcycle manufacturing developed in Japan, Europe, India, and China, where production is now extensive.