WSM Top-End Rebuild Kit - Original Series - +0.50 mm 010-831-12 520 R4 ATV Z-Ring Chain Hard knuckle covered by stretch

Hard knuckle covered by stretch spandex for high levels of impact protection Full synthetic suede palm for high levels of durability

Interior is moisture-wicking for comfort

Increased material in the sensitive thumb area also offers more cushioning and damping against vibration without reducing control

Replaces gas cap cover trim

Rear flex bellow is equipped with a flex window

WSM Top-End Rebuild Kit - Original Series - +0.50 mm 010-831-12 520 R4 ATV Z-Ring Chain Hard knuckle covered by stretchTop quality piston kits Include pistons, rings, pins, clips, racing needle bearings, head and base gaskets, intake and exhaust gaskets