Wossner forged piston kit designed for superior strength and performance in 2-stroke engines. Engineered for optimal heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany.

Features

• Forged construction for enhanced durability
• Optimized heat transfer for improved performance
• Elliptical design prevents localized pressure and piston collapse
• Designed for 2-stroke applications

Specifications

• Bore: 53.95 mm
• Piston Size: 54.00 mm
• Displacement: 125 cm³
• Stroke: 54.50 mm
• Clearance: 0.05 mm
• Wossner Compression Ratio: 2-stroke
• OEM Compression Ratio: 2-stroke
• Compression Height: 29.00 mm

Cross-Reference OEM Part Numbers

• Rings (2x): RSB5400
• Clips: CW15
• Pin: WP032

Vehicle Fitments

• Aprilia AF1 Futura (1985)
• Aprilia AF1 Replica (1985)
• Aprilia Caponord Rally (1985)
• Aprilia Europe Base (1985)
• Aprilia Mini RX (1985)
• Aprilia Pegaso Base (1985)
• Aprilia Red Rose Base (1985)
• Aprilia RS 125 (1985)
• Aprilia Syntesi Base (1985)
• Aprilia Tuareg 250 (1985)
• Aprilia AF1 Base (1986)