The crankshaft fan sprocket connects the crankshaft to the engine's cooling fan, allowing it to rotate at the proper speed to dissipate the heat generated, maintaining a suitable temperature, and protecting its internal parts, ensuring stable performance on every ride. A sprocket in good condition is your best ally to prevent overheating and extend the life of your motorcycle. Therefore, it's important to check it periodically and ensure it's free of wear or faults that could affect the cooling system.