Wossner forged piston kit with a 56.50mm bore, designed for Kawasaki KR 250 models. Engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Manufactured in Germany for durability and precision.

Features

• Forged piston for superior strength and design


• Optimized heat transfer to cylinder walls


• Elliptical design for uniform bearing surface and even thrust load distribution


• Manufactured in Germany

Specifications

• Bore: 56.50mm (+0.50mm oversize)


• Standard size piston (PN# 8043D050)


• Lock Part Number: CW16


• Pin Part Number: WP036


• Ring Set Part Number: RSB5650 x2


• Displacement: 249 cm³


• Stroke: 50.60mm


• Clearance: 0.06mm


• Wossner Compression Ratio: 2-stroke


• OEM Compression Ratio: 2-stroke


• Compression Height: 29.50mm

Cross-Reference OEM Part Numbers

• Not provided

Vehicle Fitments

• Kawasaki KR 250 (1988-1993)