PISTON KIT 04-09 CRF250 HC 78, FORGED WOSSNER 8590DA, 13101-KRN-670

Wossner High-Compression Forged Piston Kit - 78.00mm

Upgrade your engine's performance with this Wossner high-compression forged piston kit. Engineered for durability and optimal power output, this piston kit is designed to meet the demands of high-performance riding.

Key Features:

• High Compression Design: Delivers increased engine power and responsiveness.
• Forged Construction: Provides superior strength, durability, and resistance to extreme pressures and temperatures.
• Optimized Heat Transfer: Features an advanced design for efficient cooling of the combustion chamber, ensuring consistent performance.
• Elliptical Design: Promotes a uniform bearing surface, which reduces localized pressure and distributes thrust loads evenly to prevent piston collapse.
• Precision Manufacturing: Made in Germany to exacting standards for reliability and a perfect fit.

Specifications:

• Bore Size: 78.00mm
• Actual Bore Diameter: 77.96mm
• Displacement: 249 cm³
• Stroke: 52.20mm
• Clearance: 0.04mm
• Wossner Compression Ratio: 13.90:1
• OEM Compression Ratio: 12.90:1
• Dome Volume: +0.00 cm³
• Compression Height: 19.00mm
• Lock Part Number: CW16
• Pin Part Number: WP059
• Ring Set Part Number: 780XAS
• Rod Part Number: P4001 (2010 - Current)

Cross-Reference OEM Part Numbers:

• 13101-KRN-670
• Wossner Part No: 8590DA