WSM Piston Kit - Yamaha 350 - +.75 mm 50-540-06K Fortress Skid Plate Viscoelastic PU foam compound knuckle

Viscoelastic PU foam compound knuckle guards are profiled for performance

Dyno tuned velocity stack directs airflow to engine

Lightweight abrasion resistant 4-way stretch polyester

Back compartment can accommodate the Nucleon back protector (available as an optional upgrade)

For dual purpose or even trail bikes

WSM Piston Kit - Yamaha 350 - +.75 mm 50-540-06K Fortress Skid Plate Viscoelastic PU foam compound knuckleQuality and construction that meets or exceeds OEM Feature improved E clip design Contain piston, rings, pin and clips Additional rings available separately Order one per cylinder Skirts have a nonabrasive, expansion retarding MOS2 coating to reduce heat and friction for added power and longevity MOS2 coating actually draws heat through piston walls and out the bottom Specially hardened tops add strength to ring grooves