WSM Piston Kit - Yamaha - +1 mm 50-520-07PK Youth PowerCore Core Goggles Clear Lens Exceed OEM standards and performance

Exceed OEM standards and performance

/ Graves moto1 can 1

offer replaceable stainless steel (or Aluminum) skid plates which add wear resistance in the most vulnerable area

Combed Ring-Spun

WSM Piston Kit - Yamaha - +1 mm 50-520-07PK Youth PowerCore Core Goggles Clear Lens Exceed OEM standards and performanceQuality 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