This Wiseco Yamaha YZ 125 Piston Kit (1986-89)-559M05600 is the perfect upgrade for your motorcycle engine. It includes a durable piston and a wrist pin for optimal performance. Whether you're looking to improve power or replace a worn out part, this kit has everything you need.The brand Wiseco is known for its high-quality products that deliver exceptional performance. The piston is designed to fit perfectly in your Yamaha YZ 125 engine, ensuring maximum power and efficiency. Upgrade your motorcycle with this top-of-the-line kit today.