WSM Piston Kit - Polaris - +.50 mm 50-305-05PK Drop 8.0 Shorts Fitment: Yamaha R1 / R1M

Fitment: Yamaha R1 / R1M / R1S 2015-2023

Ergonomic compression fit

Mount easily using included mount kits

Classic printed t-shirt

2019-2022 Husqvarna FC 250 - - 2019-2022 Husqvarna FC 350 - - 2019-2022 Husqvarna FC 450 - - 2019-2022 Husqvarna FX 350 - - 2019-2022 Husqvarna FX 450 - -

WSM Piston Kit - Polaris - +.50 mm 50-305-05PK Drop 8.0 Shorts Fitment: Yamaha R1 / R1MQuality 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