
The Story
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.
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
Specifications
- Bore Size: 66.50mm
- Actual Diameter: 66.44mm
- Displacement: 229 cm³
- Stroke: 71.70mm
- Clearance: 0.06mm
- Compression Ratio: 2-Stroke
- OEM Compression Ratio: 2-Stroke
- Compression Height: 29.70mm
Included Components
- Piston: Wossner 8025DA
- Ring Set: RSB6650
- C-Clip Set: CW18
- Pin: WP033
Vehicle Fitments
- KTM GS 240 (1985-1988)
- KTM GS 250 (1985-1988)
Description
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.
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
Specifications
- Bore Size: 66.50mm
- Actual Diameter: 66.44mm
- Displacement: 229 cm³
- Stroke: 71.70mm
- Clearance: 0.06mm
- Compression Ratio: 2-Stroke
- OEM Compression Ratio: 2-Stroke
- Compression Height: 29.70mm
Included Components
- Piston: Wossner 8025DA
- Ring Set: RSB6650
- C-Clip Set: CW18
- Pin: WP033
Vehicle Fitments
- KTM GS 240 (1985-1988)
- KTM GS 250 (1985-1988)




















