Wossner forged piston kit designed for high-performance applications, offering superior strength and optimized heat transfer. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany for precision and durability.

Features

• Forged piston for enhanced strength and durability
• Optimized heat transfer to cylinder walls for improved performance
• Elliptical design for even thrust load distribution
• Manufactured in Germany

Specifications

• Bore Size: 80mm
• Actual Bore: 79.96mm
• Display (cm³): 249
• Stroke (mm): 54.80
• Clearance (mm): 0.04
• Wossner Compression Ratio: 14.40:1
• OEM Compression Ratio: 13.20:1
• Dome Volume (cm³): +2.30
• Compression Height (mm): 19.50
• Theoretical Weight: N/A
• Lock Part Number: CW16
• Pin Part Number: WP070
• Ring Set Part Number: 800XDS
• Rod Part Number: P4003
• Part Number: 56-W4734+400.WO

Vehicle Fitments

• KTM SX-F 250 2006-2010
• Husaberg FE 250 2013