WSM Piston Kit - Yamaha - Standard 50-520PK Fuel Tank Alpinestars ergonomic stretch insert between

Alpinestars ergonomic stretch insert between on palm

Longer-lasting extremely predictable and consistent with a drastic increase in lever feel modulation and brake torque

Stock Can + Cat System Weight = 4

Includes resealable filter bag

Improved power transfer though the clutch

WSM Piston Kit - Yamaha - Standard 50-520PK Fuel Tank Alpinestars ergonomic stretch insert betweenQuality 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