WSM Piston Kit - Polaris 500 - +.75 mm 50-311-06K C1 Chain Clean A pre-lubricated nylon inner sleeve

A pre-lubricated nylon inner sleeve guarantees smooth operation and long life

British Superbike and World Superbike riders

and Brake on the bottom right of socks

KTM 450 SXF FACTORY EDITION 12-14

SAS-TEC internal protections

WSM Piston Kit - Polaris 500 - +.75 mm 50-311-06K C1 Chain Clean A pre-lubricated nylon inner sleeveQuality 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