The Wossner 8100D200 piston kit is a +2.00 oversize forged piston designed for the 2004 Honda CR125. With a 56.00mm bore and 55.95mm piston diameter, this piston offers enhanced durability, efficient heat management, and consistent performance in demanding two-stroke applications. Its elliptical design provides a uniform bearing surface, reducing stress concentrations and preventing piston collapse. Manufactured in Germany, this kit is built to high standards for serious performance use.

Features

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  Forged piston for superior strength and longevity

  
  


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  Engineered for optimal combustion chamber heat transfer

  
  


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  Elliptical profile evenly distributes thrust loads and reduces localised pressure

  
  


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  Precision-manufactured in Germany for consistent performance

  
  

Specifications

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  Bore: 56.00 mm

  
  


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  Piston Diameter: 55.95 mm

  
  


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  Display Displacement: 125 cm³

  
  


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  Stroke: 54.50 mm

  
  


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  Piston Clearance: 0.05 mm

  
  


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  Compression Height: 28.00 mm

  
  


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  Compression Ratio (Wossner and OEM): 2-stroke

  
  


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  Lock Part Number: CW15

  
  


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  Pin Part Number: WP032

  
  


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  Ring Set Part Number: RSB5600

  
  


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  Rod Part Number: P2009ng)

  
  

Vehicle Fitments

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  2004 Honda CR125