WSM Piston Assembly - Yamaha - +.5 mm 010-870-05K 3000 Mineral 4T Engine Oil designed to eliminate leverage and

designed to eliminate leverage and flipping and have minimal stand-off from the frame

Soft bio-foam and thermoformed padding for maximum comfort and close-to-the-body fit

Ultralight design is 66% lighter than steel

use the torque of your motor without worrying about stalling

WSM Piston Assembly - Yamaha - +.5 mm 010-870-05K 3000 Mineral 4T Engine Oil designed to eliminate leverage 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