Wossner forged piston kit with a 100.00mm bore and 99.96mm diameter, designed for KTM EXC530R models. This high-compression piston (12.50:1) enhances performance and durability. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.

Features

• Forged construction for superior strength
• High-compression ratio for increased performance
• Optimized heat transfer for efficient combustion
• Elliptical design for uniform load distribution
• Manufactured in Germany

Specifications

• Bore: 100.00mm
• Diameter: 99.96mm
• Display (cm³): 510
• Stroke (mm): 72.00
• Clearance (mm): 0.04
• Wossner Compression Ratio: 12.50:1
• OEM Compression Ratio: 11.90:1
• Dome Volume (cm³): -2.80
• Compression Height (mm): 24.40

Cross-Reference OEM Part Numbers

• Wossner Piston KTM EXC530R (PN# 8706DA)
• Lock P/N: CW19
• Pin P/N: WP037
• Ring Set P/N: 950ADS-2
• OEM References: 78630007300, PROX 01.6528, WOSSNER 8706

Vehicle Fitments

• KTM EXC530R (2008-2011)