







WISECO 4T Forged Series Piston Kit - ø97.00 mm
Forged piston for motocross use, ideal for replacement or engine preparation. Designed by WISECO, a global leader in forged components, this kit combines strength and machining precision to meet the demands of high-performance 4T engines. Supplied as a complete kit with rings, it facilitates cylinder refurbishment or oversizing.
This kit is aimed at riders and mechanics looking for a high-performance and durable replacement part for 450cc engines and similar — compatible notably with YAMAHA YZ 450 F (CJ22/CJ23). Installation and break-in must follow manufacturer recommendations and cylinder machining. Recognized for its longevity, it serves as a reliable foundation for restoration or engine preparation without unverified technical promises.