WSM Piston Kit - Polaris - +1 mm 010-835-07K Quantum-X Steel Helmet Perforation inserts on sides of

Perforation inserts on sides of torso and forearms for airflow and comfort

Padded back panel and airmesh shoulder straps

comfort and optimal grip

but delivers improved results when used with 170cc Big Bore kit Banjo bolt kit designed for 170cc big bore kit Includes ceramic coated cylinder

WSM Piston Kit - Polaris - +1 mm 010-835-07K Quantum-X Steel Helmet Perforation inserts on sides ofQuality 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