WSM Piston Kit - Yamaha 660 - Standard 50-544K Two-Piece Stealth Headlight System After years of development we

After years of development we are proud to release the best auto-blipper available

(11/10ths and maximum effort every time from Graves) - Chuck Graves

External finger and palm seams for a close fit and superior feel Printed logos for weight-saving and material integrity

Adds protection and style to your ZX6 sport bike

Ideal for protecting against wind-chill

WSM Piston Kit - Yamaha 660 - Standard 50-544K Two-Piece Stealth Headlight System After years of development weQuality 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