Wednesday, April 1, 2009

ELECTRICAL MOTORCYCLES


Electric motorcycles
Main article: Electric motorcycle
Very high fuel economy equivalents can be derived by electric motorcycles. Electric motorcycles are nearly silent, zero-emission electric motor-driven vehicles. Operating range and top speed suffer because of limitations of battery technology. Fuel cells and petroleum-electric hybrids are also under development to extend the range and improve performance of the electric motors.


Racing motorcycles leaning in a turn.
Main article: Bicycle and motorcycle dynamics
Different types of motorcycles have different dynamics and these play a role in how a motorcycle performs in given conditions. For example, a shorter wheelbase would generally make a bike lean faster[citation needed] and would be quicker around corners compared to a longer wheelbase. Longer wheelbase on the other hand provides more stability in a straight line.
Motorcycles must be leaned in order to make turns. This lean is induced by the method known as countersteering, in which the rider steers the handlebars in the direction opposite of the desired turn. Because it is counter-intuitive this practice is often very confusing to novices—and even to many experienced motorcyclists.
Short wheelbase motorcycles, such as sport bikes, can generate enough torque at the rear wheel, and enough stopping force at the front wheel, to lift the opposite wheel off the pavement. These actions, if performed on purpose, are known as wheelies and stoppies respectively. If carried past the point of recovery the resulting upset is known as "looping" the vehicle

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