WSM Piston Kit - Yamaha 660 - +.50 mm 50-544-05K Youth Split Personality Hoodie Stretch elbow accordion helps movement

Stretch elbow accordion helps movement and comfort on the bike

with a shorter inner core length and aluminum canister

two OEM replacement pins

it's always best to have more support and to protect the transmission from serious damage

WSM Piston Kit - Yamaha 660 - +.50 mm 50-544-05K Youth Split Personality Hoodie Stretch elbow accordion helps movementQuality 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