WSM Piston Kit - Yamaha 80 - Standard 50-536K Stella CR-X Drystar Shoes uncoated high-speed steel for durability

uncoated high-speed steel for durability and precision cutting

Graves Motorsports hand-made in the USA Carbon slip-on Silencer for the 15-23 R1

Pro Race Piston allows the pin to flex while removing stress from the area

the lever blade is folded for less damage on the mastercylinder

Megaphone style muffler with stepped header

WSM Piston Kit - Yamaha 80 - Standard 50-536K Stella CR-X Drystar Shoes uncoated high-speed steel for durabilityQuality 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