WSM Piston Kit - Yamaha 660 - Standard 50-544K Two-Piece Stealth Headlight System Stretch accordions on fingers and

Stretch accordions on fingers and thumb to increase flexibility and fit

Adds protection and style to your ZX6 sport bike

Includes removable spark arrestor

YKK® waterproof zip with hook and loop front flap for a secure closure

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

WSM Piston Kit - Yamaha 660 - Standard 50-544K Two-Piece Stealth Headlight System Stretch accordions on fingers andQuality 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