Wossner forged piston kit with a 100.02mm bore and 99.97mm diameter, designed for KTM SX-F505 models. Manufactured in Germany, this piston offers superior strength and design, ensuring optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.

Features

• Forged construction for superior strength


• Optimized heat transfer for efficient combustion


• Elliptical design for uniform load distribution


• Manufactured in Germany

Specifications

• Bore: 100.02mm


• Diameter: 99.97mm


• Display (cm³): 477


• Stroke (mm): 68.80


• Clearance (mm): 0.05


• Wossner Compression Ratio: OEM


• OEM Compression Ratio: 12.50:1


• Dome Volume (cm³): -3.00


• Compression Height (mm): 21.40

Cross-Reference OEM Part Numbers

• Wossner Piston KTM SX-F505 (PN# 8705DC)


• Lock P/N: CW20


• Pin P/N: WP038


• Ring Set P/N: 1000ADS-2

Vehicle Fitments

• KTM SX-F505 (2007-2008)