WSM Piston Kit - Polaris - +1 mm 50-300-07PK Youth XC1 Vest Come complete with assorted mounting

Come complete with assorted mounting hardware for do-it-yourself applications

Combines dual front and rear blade connectors

2014-2015 Beta 250 RR - - 2014-2015 Beta 300 RR - -

” In the drag racing community

NOTE: Both "Upper" and "Lower" R1 Velocity Stacks are designed to work togehter

WSM Piston Kit - Polaris - +1 mm 50-300-07PK Youth XC1 Vest Come complete with assorted mountingQuality 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