Namura Piston Kit 88.39mm Polaris Sportsman 400 4x4 '01-'05 Grade_75W90 The overlapping front zip opens

The overlapping front zip opens completely to expose full-ventilation mesh

With H50 on the front your heavy V-Twin needs only a light touch through the corners

875" base with 11mm hole

Wind-tunnel tested aerodynamic shell structure: for extreme performance at maximum speeds

Namura Piston Kit 88.39mm Polaris Sportsman 400 4x4 '01-'05 Grade_75W90 The overlapping front zip opensNamura provides high quality piston options to suit a wide range of applications, including direct OEM replacements, high compression variants, and multiple oversizes. B (0. 01 mm) and C (0. 02 mm) oversizes are also available, helping to extend the service life of expensive plated cylinders. Select applications are supported with big bore piston kits. With the addition of MOS2 coating and hard anodising, Namura delivers improved performance and