High-Torque lightweight 3-shoe flywheel helps you to increase acceleration and improves throttle feeling. Made from tough Swiss 7075 T6 aluminum and hard coated for extra durability. Strategically lightened set alongside the standard #358532 flywheel, reducing rotating weight without having to sacrifice power or durability. Highly-polished, smooth flyweight pins are factory-pressed. Knurled external advantage for simple beginning on beginner box. Incorporated cover prevents dust from entering the engine bearing.