What does Harley's 103 cubic inches displacement mean?
1 Answers
The United States uses cubic inches as the unit for displacement, which refers to the maximum exhaust volume when the cylinder and piston perform one power stroke. 103 CUBE-INCH is equivalent to 1688cc, comparable to a 1.7L engine displacement in cars. Internationally, cubic centimeters (CC) are commonly used, which is the same as milliliters (ML). Displacement classification: Mopeds (below 50cc), small-displacement motorcycles (50cc-250cc), mid-range (400cc-750cc), large-displacement (above 600cc). Anything above 600cc is referred to as large-displacement. Calculating displacement: Bore: The diameter of the cylinder is referred to as the bore. Stroke: When the piston moves reciprocally within the cylinder, the distance traveled from the top dead center (TDC) to the bottom dead center (BDC) is called the piston stroke, or simply stroke.