Wossner forged piston kit designed for KTM EXC 250 models with a 72.50mm bore. Engineered for optimal heat transfer and uniform bearing surface distribution, preventing piston collapse. Manufactured in Germany for durability and precision.

Features

• Forged construction for superior strength and durability


• Optimized heat transfer for improved engine performance


• Elliptical design ensures even pressure distribution, reducing localized stress


• Manufactured in Germany for high-quality performance

Specifications

• Bore Size: 72.50mm


• Actual Bore: 72.43mm


• Displacement: 249 cm³


• Stroke: 60.40mm


• Clearance: 0.07mm


• Compression Ratio: 2-Stroke


• Compression Height: 38.00mm


• Lock Part Number: CW18


• Pin Part Number: WP033


• Ring Set Part Number: RSB7250

Cross-Reference OEM Part Numbers

• Wossner Piston Part Number: 8034D150

Vehicle Fitments

• KTM EXC 250 (1977-1982)