Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles.[1] EMG is performed using an instrument called an electromyograph to produce a record called an electromyogram.
The general consensus is that a classic motorcycle must be at least 25 years old. Another consideration of what constitutes a classic motorcycle is the simplicity of the bike itself. To be considered a classic, a motorcycle should maintain simple aesthetics hearkening back to the origins of these vehicles.
Some cars will never be 'classics', no matter how old they are. A classic car is a matter of opinion, not age. For a car to be classed as 'vintage' it must be over 25 years old. For a car to be classed as 'veteran', it must be over 50 years old.