Wossner forged piston kit with a 45.03mm bore (44.99mm) for KTM SX65 (2009-2015). Designed for superior strength and heat transfer efficiency, this piston ensures optimal combustion performance. The elliptical design distributes thrust loads evenly, reducing localized pressure and preventing piston collapse. Manufactured in Germany.

Features

• Forged piston for increased strength and durability


• Optimized heat transfer for improved performance


• Elliptical design ensures uniform bearing surface under heat expansion


• Even thrust load distribution to prevent piston collapse


• Manufactured in Germany

Specifications

• Bore Size: 45.03mm (44.99mm)


• Part Number: 8241DD


• Lock Part Number: CW12


• Pin Part Number: WP091


• Ring Set Part Number: RSB4500


• Displacement: 63 cm³


• Stroke: 40.80mm


• Clearance: 0.04mm


• Compression Ratio: 2-stroke


• Compression Height: 21.60mm

Vehicle Fitments

• KTM SX65 (2009-2015)