High-Torque lightweight 3-shoe flywheel allows you to increase acceleration and improves throttle feeling. Made from tough Swiss 7075 T6 aluminum and difficult coated for extra durability. Strategically lightened set alongside the standard #358532 flywheel, reducing rotating fat without the need to lose energy or durability. Highly-polished, smooth flyweight pins are factory-pressed. Knurled outside advantage for simple start on novice field. Incorporated address prevents dust from entering the engine bearing.