WSM Piston Kit - Polaris - +1 mm 50-300-07PK Cam Chain Tensioner 2020-2021 Beta 350 RR 4T

2020-2021 Beta 350 RR 4T - - 2020-2021 Beta 430 RR 4T - - 2020-2021 Beta 480 RR 4T - - 2020-2021 Beta 390 RR 4T - -

For moderately aggressive everyday and sport street riding

adding a active tuner or when having multiple bikes

D-ring waist adjustment with hook-and-loop straps for highly a customized fit

WSM Piston Kit - Polaris - +1 mm 50-300-07PK Cam Chain Tensioner 2020-2021 Beta 350 RR 4TQuality 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