WSM Piston Kit - Polaris 500 - +.75 mm 50-311-06K C1 Chain Clean and Brake on the bottom

and Brake on the bottom right of socks

Internal toe box and heel counter reinforcement is layered under the upper for a more ergonomic design

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

plus perforation zones for improved breathability Side reinforcement in synthetic suede

Redesigned instep and Achilles accordion flex zones

WSM Piston Kit - Polaris 500 - +.75 mm 50-311-06K C1 Chain Clean and Brake on the bottomQuality 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