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: 95mm


• Actual Bore: 94.95mm


• Display (cm³): 510


• Stroke (mm): 72.00


• Clearance (mm): 0.05


• Wossner Compression Ratio: OEM


• OEM Compression Ratio: 11.00:1


• Dome Volume (cm³): -2.10


• Compression Height (mm): 23.50


• Theoretical Weight: N/A


• Lock Part Number: CW20


• Pin Part Number: WP073


• Ring Set Part Number: 950ADS-2


• Part Number: 56-W4731.A.WO

Cross-Reference OEM Part Numbers

• 59030007000


• 4731M09700

Vehicle Fitments

• Beta RR525 2005-2009


• KTM EXC520 2000-2002


• KTM SX520 2000-2002


• KTM SX-EXC 525 Racing 2003-2007


• KTM SM-R525 2004-2005


• KTM EXC-G525 Racing 2003-2006


• KTM MXC-G525 Racing 2003-2005


• KTM SX525 Supermoto 2005


• KTM XC-G525 Racing 2006


• KTM EXC525 Factory Racing 2007