This Wossner forged piston kit is a +0.01mm oversize replacement for Honda CRF450R models from 2015 onward. Engineered for high-performance four-stroke engines, it offers robust construction and precise tolerances for reliable and efficient operation.

Features

• Forged piston provides exceptional strength and long-term durability

• Elliptical design ensures a consistent bearing surface during heat expansion

• Enhances heat transfer from combustion chamber to cylinder walls

• Distributes thrust loads evenly to prevent piston collapse

• Manufactured in Germany

Specifications

• Bore Size: 96.01mm

• Actual Piston Size: 95.97mm

• Display Displacement: 449 cm³

• Stroke: 62.10mm

• Piston Clearance: 0.04mm

• Wossner Compression Ratio: OEM

• OEM Compression Ratio: 12.50:1

• Dome Volume: -2.24 cm³

• Compression Height: 20.60mm

• Theoretical Weight: 241.00g

• Circlip Part Number: CW19

• Pin Part Number: WP028

• Ring Set Part Number: 960ADS-2

Cross-Reference OEM Part Numbers

• Part No: 56-W927.A.WO

Vehicle Fitments

• Honda CRF450R (2015– )