WOSSNER FORGED 67.6mm PISTON KIT KTM 250 MX/GS 1985-1988

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)