WSM Piston Kit - Yamaha 350 - +.50 mm 50-540-05K Chain Lube Spokes are polished to maintain

Spokes are polished to maintain surface strength

Improved feel at the clutch lever and stronger performance than OEM springs

Durable mesh fabric top hand and finger fourchettes for ultimate venting in warm weather

Front two layer reflective transfer Ageless logo

Fitment: Yamaha R6 (2017-2023)

WSM Piston Kit - Yamaha 350 - +.50 mm 50-540-05K Chain Lube Spokes are polished to maintainQuality 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