PISTON 05-07 CR250 66.40 1RING WOSSNER 8172DB FORGED KIT

Wossner 66.41mm (66.35mm) forged piston kit is designed for Honda CR 250R models from 2005 to 2007. This single-ring piston is engineered for strength and precision, ensuring efficient heat transfer to the cylinder walls, providing uniform expansion, and reducing localized pressure. The elliptical design distributes thrust loads evenly, preventing piston collapse. Manufactured in Germany, it meets high-quality standards for reliable performance.

Features

• Wossner forged piston for superior strength and durability
• Single-ring design for optimized performance
• Optimized heat transfer for improved combustion efficiency
• Elliptical design for uniform bearing surface and reduced localized pressure
• Precision-engineered to prevent piston collapse
• Made in Germany

Specifications

• Bore Size: 66.41mm (66.35mm)
• Oversize: +0.01mm
• Displacement: 249cc
• Stroke: 72.00mm
• Clearance: 0.06mm
• Compression Ratio: 2-stroke
• Compression Height: 38.00mm
• Lock Part Number: CW18
• Pin Part Number: WP033
• Ring Set Part Number: RSB6640
• Gasket Part Number: D2009
• Rod Part Number: P2020
• Theoretical Weight: Not specified

Vehicle Fitments

• Honda CR 250R (2005-2007)

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.