Engine displacement, also known as engine capacity or engine size, refers to the total volume swept by all the cylinders in an engine. In the case of Royal Enfield motorcycles, the engine displacement can be calculated using the following formula:
Displacement = (Bore/2)^2 x Stroke x Number of Cylinders x 0.7854
Here's a breakdown of the formula:
Bore: This refers to the diameter of the cylinder in the engine. It is measured in millimeters (mm).
Stroke: This represents the distance traveled by the piston in the cylinder from top dead center (TDC) to bottom dead center (BDC). It is measured in millimeters (mm).
Number of Cylinders: Royal Enfield motorcycles typically have a single-cylinder or a twin-cylinder engine. This value simply represents the number of cylinders in the engine.
0.7854: This is a constant value derived from the mathematical formula for the area of a circle (π/4 or 0.7854). It is used to calculate the cross-sectional area of the cylinder.
By plugging in the appropriate values for bore, stroke, and the number of cylinders into the formula, you can calculate the engine displacement of a Royal Enfield motorcycle.
It's worth noting that Royal Enfield produces motorcycles with different engine sizes, so the specific values for bore, stroke, and the number of cylinders will vary depending on the model you are referring to. Make sure to consult the technical specifications or official documentation for the particular Royal Enfield motorcycle you are interested in to obtain the accurate values needed for the calculation.