WSM Piston Kit - Yamaha - +.50 mm 50-520-05PK Honda Racing Pullover Hoodie Redesigned rear bellow in stretch

Redesigned rear bellow in stretch microfiber for improved natural front and back movement

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highest quality numbers made

hyper-extension and hyper-flexion as well as providing Achilles impact protection

WSM Piston Kit - Yamaha - +.50 mm 50-520-05PK Honda Racing Pullover Hoodie Redesigned rear bellow in stretchQuality 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