This Wossner forged piston kit is a standard-size replacement specifically designed for Honda CRF450R models from 2015 onward. Built for high-performance four-stroke engines, it combines precise engineering and durable construction to support competitive and off-road use.

Features

• Forged construction for high durability and strength under performance conditions

• Elliptical design ensures a uniform bearing surface during heat expansion

• Efficient heat transfer from combustion chamber to cylinder walls

• Prevents piston collapse through even thrust load distribution

• Manufactured in Germany

Specifications

• Bore Size: 96.00mm

• Actual Piston Size: 95.96mm

• 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

• Cross Reference: 13110-MEN-A90, 40089M09600

Vehicle Fitments

• Honda CRF450R (2015– )