The starter sprocket is a component in a motorcycle's starting system that interacts with the starter motor to initiate engine cranking. Located typically on the engine’s crankshaft or the starter motor shaft, it engages with the starter motor's drive mechanism (often through a starter clutch) to turn the engine over when the starter is activated. Once the engine starts and reaches operational speed, the starter sprocket disengages, allowing the engine to run independently. This component is essential for smooth engine start-up and reliable starting performance.