Crafted from durable materials, the Engine Crankshaft is designed for longevity and reliability. OEM NO: 231102E501. Comes as a standalone crankshaft, making installation straightforward for professional mechanics. The sprocket enhances your pit bike’s performance by ensuring maximum power transmission, extending service life, and improving overall transmission efficiency, contributing to smoother and more reliable rides. It delivers maximum power transmission, boasts a long service life, and optimizes transmission performance, making it a durable and efficient component for maintaining or enhancing your pit bike’s functionality.