WSM Piston Kit - Polaris - Standard 50-300PK Receiving Beanie Wide entry aperture for convenience

Wide entry aperture for convenience with hook-and-loop upper closure flap that allows a wide range of adjustment for an excellent fit

This R1 exhaust system was developed using the same technology that has powered the Monster Energy Graves Yamaha team to 8 AMA / MotoAmerica Superbike championships and numerous 600 championships

smooth and strong shell needed to manage impact energy and maximize the helmet's glancing off ability

Graves Exhaust = 6

LINK ™ Header Weight = 3

WSM Piston Kit - Polaris - Standard 50-300PK Receiving Beanie Wide entry aperture for convenienceQuality 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