PISTON 85-88 KTM250 GS 67.00, 8025D050 FORGED WOSSNER KIT

Wossner forged piston kit designed for superior strength and durability. Engineered for optimal heat transfer from the combustion chamber to the cylinder walls. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features a hard Teflon skirt coating for a precise fit and improved conformability to the cylinder bore.

Features

• High-strength forged construction for durability


• Optimized heat transfer for improved engine performance


• Elliptical design for even load distribution and prevention of piston collapse


• Hard Teflon skirt coating for a perfect fit and reduced friction


• Precision manufacturing in Germany


• Oversize bore +0.50mm

Specifications

• Bore Size: 67.00mm


• Actual Diameter: 66.94mm


• Displacement: 249 cm³


• Stroke: 71.70mm


• Clearance: 0.06mm


• Compression Ratio: 2-Stroke


• OEM Compression Ratio: 2-Stroke


• Compression Height: 29.70mm

Included Components

• Piston: Wossner 8025D050


• Ring Set: RSB6700


• C-Clip Set: CW18


• Pin: WP033

Vehicle Fitments

• KTM GS 240 (1985-1988)


• KTM GS 250 (1985-1988)