In the context of motorcycles, "CC" and "cc" both refer to the engine displacement or engine size. They are used interchangeably and represent the same measurement, which is the cubic centimeter (cc) volume of the engine's combustion chambers.
The term "CC" stands for "cubic centimeter," which is a unit of measurement used to express the displacement or size of an engine. It represents the total volume of all the cylinders in the engine. For example, if a motorcycle has a 500cc engine, it means the total combined volume of all the cylinders is 500 cubic centimeters.
The abbreviation "cc" is often written in lowercase letters and is used as a shorthand form of "cubic centimeter." It is commonly used in the motorcycle industry and automotive field to specify engine sizes. For instance, you may see motorcycles referred to as "250cc" or "1000cc," indicating the engine displacement.
In summary, "CC" and "cc" are essentially the same when used in the context of motorcycles, representing the engine displacement measured in cubic centimeters.