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): 527


• Stroke (mm): 54.80


• Clearance (mm): 0.04


• Wossner Compression Ratio: 12.90:1


• OEM Compression Ratio: 12.80:1


• Dome Volume (cm³): 1.20


• Compression Height (mm): 19.50


• Theoretical Weight: N/A


• Lock Part Number: CW16


• Pin Part Number: WP059


• Ring Set Part Number: 800XDS


• Part Number: 56-W4730+400.WO

Vehicle Fitments

• KTM EXC250 Racing 2006-2013


• KTM SX-F250 2006-2012


• Husaberg FE250 2013