WSM Piston Kit - Yamaha 660 - +.50 mm 50-544-05K Youth Split Personality Hoodie Now you can get the

Now you can get the tools to program it

Stretch elbow accordion helps movement and comfort on the bike

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

two OEM replacement pins

Permanent graphics

WSM Piston Kit - Yamaha 660 - +.50 mm 50-544-05K Youth Split Personality Hoodie Now you can get theQuality 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