
PISTON KIT 02-04 CR250 66.40 C, WOSSNER 8066DC HONDA MX
This Wossner forged piston kit with a 66.42mm bore (+0.02mm oversize) is engineered for Honda CR250R models from 2002 to 2004. Manufactured in Germany, it is built for reliability and performance in two-stroke engines. The piston’s elliptical design and precision machining enhance load distribution and thermal efficiency, making it a dependable solution for performance rebuilds.
Features
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Forged construction for high strength and durability
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Designed to optimise heat transfer from the combustion chamber to cylinder walls
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Elliptical profile distributes load evenly, preventing localised stress and piston collapse
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Made in Germany
Specifications
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Bore: 66.42mm
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Actual Bore: 66.36mm
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Engine Displacement: 249 cm³
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Stroke: 72.00mm
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Clearance: 0.06mm
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Compression Ratio: 2-stroke (Wossner and OEM)
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Compression Height: 38.00mm
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Lock Part Number: CW18
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Pin Part Number: WP033
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Ring Set Part Number: RSB6640 x 2
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Rod Part Number: P2020
Vehicle Fitments
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2002 Honda CR250R
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2003 Honda CR250R
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2004 Honda CR250R