WSM Piston Kit - Polaris - +1 mm 50-305-07PK Rear Suspension Knuckle Kit Lightweight chassis with refillable water

Lightweight chassis with refillable water chamber for repeat use

Stretch panels on backhand and fingertips increase flexibility and comfort

Developed in three waist-to-shoulder dimensions in order to cover all body sizes Lattice structure back shell plate is constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight-saving properties combined with soft viscoelastic PU (polyurethane) foam compound construction

Synthetic accordion inserts and stretch fourchettes in between the fingers

CNC-machined billet end cap with laser-engraved logo

WSM Piston Kit - Polaris - +1 mm 50-305-07PK Rear Suspension Knuckle Kit Lightweight chassis with refillable waterQuality 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