Our supercharger and Do-It-Yourself Bolt-on kit can increase your 49cc , 50cc - 125cc mororcycle's (moped, scooter, pit bike, pocket bike, dirt bike) acceleration by 100%. This supercharger unit compresses and forces air into your engine. With this increased air supply more fuel can be used creating a huge increase in acceleration. Acceleration can be as much as doubled, making your top speed attainable in half the time. Improved acceleration will improve the maneuverability of you motorcycle, especially in traffic situations.