A motorcycle engine is a type of internal combustion engine specifically designed to power motorcycles. It converts fuel into mechanical energy, allowing the bike to move. Most motorcycle engines are either two-stroke or four-stroke, with four-stroke engines being more common due to their efficiency and lower emissions. The engine typically consists of several key components, including the cylinder, piston, and crankshaft. The cylinder houses the piston, which moves up and down to create power. The crankshaft converts this linear motion into rotational motion, ultimately driving the motorcycle's wheels.