PISTON KIT 97-01 CR250 66.40 A, WOSSNER 8001DA HONDA MX

This Wossner forged piston kit is designed for Honda CR250R models from 1997 to 2001 and features a standard bore of 67.40mm. Manufactured in Germany using precision forging techniques, this piston incorporates an elliptical design that evenly distributes thermal expansion stress, reducing localised pressure points and helping prevent piston collapse. The design also facilitates optimal combustion heat transfer to the cylinder wall, ensuring durability and performance in demanding two-stroke conditions.

Features

• Forged piston construction for high strength and wear resistance

• Elliptical shape provides even expansion under heat

• Reduces risk of piston collapse by distributing thrust loads uniformly

• Optimised for efficient heat dissipation from combustion chamber

• Manufactured in Germany with precision engineering

Specifications

• Bore Size: 67.40mm (Standard)

• Actual Diameter: 66.34mm

• Compression Height: 38.00mm

• Stroke: 72.00mm

• Displacement: 249 cm³

• Piston Clearance: 0.06mm

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

Cross-Reference OEM Part Numbers

• Wossner Piston Kit Part No: 8001DA

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6640 x2

• Rod: P2021

• OEM Reference: 13101-KZ3-L10

Vehicle Fitments

• 1997 Honda CR250R

• 1998 Honda CR250R

• 1999 Honda CR250R

• 2000 Honda CR250R

• 2001 Honda CR250R