PISTON KIT 13-16 SXF250 78mm B, WOSSNER 8874DB HC KTM

Wossner 78mm High Compression Piston Kit

This Wossner forged high-compression piston kit is engineered for enhanced performance in demanding engine conditions. Manufactured in Germany, it features a precisely machined bore size of 78.01mm (actual 77.97mm), offering a +0.01mm oversize option. The advanced two-ring design and elliptical profile work in synergy to ensure balanced thrust load distribution and optimal thermal performance, contributing to efficient combustion and power delivery.

Key Features

• Forged high-compression piston with a two-ring configuration for durability.
• Elliptical piston design promotes balanced pressure distribution, especially under thermal expansion.
• Optimized for efficient transfer of combustion heat to cylinder walls.
• Precision manufactured in Germany for superior quality and reliability.

Specifications

• Bore Size: 78.01mm (actual 77.97mm)
• Displacement: 249 cm³
• Stroke: 52.30 mm
• Clearance: 0.04 mm
• Compression Ratio (Wossner): 14.50:1
• Compression Ratio (OEM): 13.90:1
• Dome Volume: -1.20 cm³
• Compression Height: 19.50 mm
• Lock Part Number: CW16
• Pin Part Number: WP070
• Ring Set Part Number: RIK78.00