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)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.