Wossner forged pistons are designed for high durability and efficient thermal management, facilitating optimal heat transfer from the combustion chamber to the cylinder walls. Their elliptical structure helps distribute thrust loads evenly under heat expansion, reducing localized stress and preventing piston collapse. This model, featuring a 97.02mm bore (96.98mm actual size), is engineered for Yamaha YZ450F engines and manufactured in Germany.

Features

• Forged construction for enhanced durability


• Elliptical profile for uniform load distribution under expansion


• Engineered for effective heat dissipation


• Made in Germany

Specifications

• Bore Size: 97.02mm (actual 96.98mm)


• Displacement: 449 cm³


• Stroke: 60.80mm


• Clearance: 0.04mm


• Compression Ratio: OEM (12.50:1)


• Dome Volume: -4.90 cm³


• Compression Height: 24.00mm

Vehicle Fitments

• Yamaha YZF 450 2014–2015