A scientifically designed racer, which includes an aerodynamic design and innovative weight system. Its design was created with consideration for racing properties, such as aerodynamics, weight distribution and airflow factors. Proper placement of the weight enables you to fine tune your racer for winning results. Note: The wheels and axles in this kit are made by Pinecar. If using this kit for BSA®, AWANA, or other racing events you may need to replace the wheels and axles with parts used in those racing organizations respectively.