WSM Piston Assembly - Sea-Doo - +1 mm 010-818-07PK Adventure Seat Fitment: Aprilia RS660 2019 +

Fitment: Aprilia RS660 2019 +

Swivel hook design eliminates binding

The are the same catch can setups that are used on the Team Graves Yamaha AMA Championship winning Yamaha YZ450F and Yamaha YZ250F supermoto bikes

while flexible lower area absorbs any accidental contact with the knee

Features an internal spark arrestor

WSM Piston Assembly - Sea-Doo - +1 mm 010-818-07PK Adventure Seat Fitment: Aprilia RS660 2019 +Quality 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