A motorcycle is a two-wheeled vehicle with an internal combustion engine for propulsion. Modern motorcycles are often powered by electric motors for zero-emission operation. However, petroleum-based and hybrid fuel cell systems are also under development. The term motorcycle is derived from the combination of motor and bicycle. It is a word that can be shortened to bike, but there are some advantages to using the longer term for clarity.
The basic motorcycle is a bicycle with an added engine and transmission. This engine can be either a single or multiple-cylinder gas-powered, diesel, or electric motor. The engine drives a chain or belt that powers one or more rear wheels. The bicycle’s front wheel is driven by a separate crankshaft, while the rear wheel is driven by an additional shaft connected to the engine.
Motorcycles stay upright while rolling because of a physical property called conservation of angular momentum. The wheelβs angular momentum points along the axle, and it βwantsβ to stay pointing in that direction. This property allows the rider to lean the motorcycle, lowering its center of gravity and improving its turning ability.
As a writing device, motorcycles can create an exciting atmosphere in your story. Describing the perilous nature of the vehicles can make readers feel invested in your characters, hoping they make it through the adventure safely. In addition, motorcycles can be used to create tension between your characters, as people who are more experienced riders may appear more daring than those with less experience.
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