WOSSNER 77mm PISTON KIT YAMAHA YZ450F 14-18, WR450F 16-18, YZ450FX 16-18

Wossner high-compression forged pistons are designed for maximum strength and efficient heat transfer, supporting high-performance engine demands. The elliptical piston shape allows even bearing surface expansion, reducing localized stress and minimizing the risk of collapse. This model features a 97.02mm bore (96.98mm actual size) and is manufactured in Germany for Yamaha YZ450F engines.

Features

• Forged construction for high strength
• Elliptical profile ensures uniform expansion and thrust distribution
• Designed for high-compression applications
• Made in Germany

Specifications

• Bore Size: 97.02mm (actual 96.98mm)
• Displacement: 449 cm³
• Stroke: 60.80mm
• Clearance: 0.04mm
• Wossner Compression Ratio: 13.50:1
• OEM Compression Ratio: 12.50:1
• Dome Volume: -2.10 cm³
• Compression Height: 24.00mm

Vehicle Fitments

• Yamaha YZ450F 2014–2015

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.