This Wossner forged high-compression piston kit features a 95.01mm bore size (94.96mm actual), offering a +0.01mm oversize fitment for KTM SX-F450 models from 2013 to 2018. Manufactured in Germany, the piston includes a high-compression dome for increased performance and an elliptical design to evenly distribute thrust loads under heat expansion. It is engineered to deliver enhanced power while maintaining durability and heat transfer efficiency.

Features

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  Forged high-compression piston with precision oversize specification

  
  


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  Elliptical shape ensures even thrust load distribution under thermal stress

  
  


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  Designed for effective heat transfer from combustion chamber to cylinder walls

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore Size: 95.01mm (actual 94.96mm)

  
  


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  Displacement: 449 cm³

  
  


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  Stroke: 84.00 mm

  
  


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  Clearance: 0.05 mm

  
  


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  Compression Ratio (Wossner): 13.60:1

  
  


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  Compression Ratio (OEM): 12.60:1

  
  


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  Dome Volume: +4.10 cm³

  
  


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  Compression Height: 22.80 mm

  
  

Cross-Reference OEM Part Numbers

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  56-W956.B.WO.HC

  
  

Vehicle Fitments

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  KTM SX-F450 (2013–2018)