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

• Forged construction for high strength and durability

• Designed to optimise heat transfer from the combustion chamber to cylinder walls

• Elliptical profile distributes load evenly, preventing localised stress and piston collapse

• Made in Germany

Specifications

• Bore: 66.42mm

• Actual Bore: 66.36mm

• Engine Displacement: 249 cm³

• Stroke: 72.00mm

• Clearance: 0.06mm

• Compression Ratio: 2-stroke (Wossner and OEM)

• Compression Height: 38.00mm

• Lock Part Number: CW18

• Pin Part Number: WP033

• Ring Set Part Number: RSB6640 x 2

• Rod Part Number: P2020

Vehicle Fitments

• 2002 Honda CR250R

• 2003 Honda CR250R

• 2004 Honda CR250R