How Does a Bicycle Freewheel Work?

Answer

The freewheel of a bicycle operates with between five and nine gears on it, depending on the type of bike. A freewheel turns freely in one direction and then locks in the other. That enables the rider to choose whether to pedal or not to pedal. When not pedalling, the bike coasts and this is another feature that tricycles and penny-farthing bicycles lack.
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