PISTON KIT 05-09 CR250 66.40 A, WOSSNER 8171DA HONDA MX

This Wossner piston kit is designed for the Honda CR250R models from 2005 to 2007, featuring a 66.40mm bore size. Manufactured in Germany, it delivers enhanced strength and thermal management for high-performance two-stroke engines. The kit utilises an elliptical design for uniform load distribution, reducing the risk of piston collapse under high-temperature conditions.

Features

• Forged piston design for superior strength and performance

• Engineered for optimal combustion chamber heat transfer

• Elliptical geometry ensures even thrust load distribution

• Designed to resist piston collapse during thermal expansion

• Manufactured in Germany

Specifications

• Bore: 66.40 mm

• Actual diameter: 66.34 mm

• Clearance: 0.06 mm

• Compression height: 38.00 mm

• Display: 249 cm³

• Stroke: 72.00 mm

• Wossner compression ratio: 2-stroke

• OEM compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

• 13110-KSK-730

• 13120-KSK-730

• 13121-KSK-732

• 13111-KSK-730

• 90601-430-000

• 09104866

Vehicle Fitments

• 2005 Honda CR 250 R

• 2006 Honda CR 250 R

• 2007 Honda CR 250 R