PISTON 85-88 KTM250 GS 67.50, 8025D100 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. Manufactured in Germany for high-quality performance. This piston has an oversize bore of +1.00mm.

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


• Precision manufacturing in Germany


• Oversize bore +1.00mm

Specifications

• Bore Size: 67.50mm


• Actual Diameter: 67.44mm


• 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 8025D100


• Ring Set: RSB6750


• C-Clip Set: CW18


• Pin: WP033

Vehicle Fitments

• KTM GS 240 (1985-1988)


• KTM GS 250 (1985-1988)