Wossner Forged Piston Kit 54.01mm Bore – Honda CR125 (1990–1991)

This Wossner forged piston kit is designed for Honda CR125 models from 1990 to 1991, featuring a bore size of 54.01 mm and a piston diameter of 53.95 mm. Developed for 2-stroke engines, the piston is engineered to optimise heat transfer and structural durability under thermal expansion. Manufactured in Germany, it delivers uniform thrust distribution, reducing the risk of piston collapse.

Features

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  Forged construction for increased strength and durability

  
  


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  Optimised combustion heat transfer to cylinder walls

  
  


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  Elliptical design for uniform bearing surface and thrust load distribution

  
  


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  Made in Germany

  
  

Specifications

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  Bore Size: 54.01 mm

  
  


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  Piston Diameter: 53.95 mm

  
  


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  Engine Displacement: 125 cm³

  
  


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  Stroke: 54.50 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Compression Height: 28.00 mm

  
  


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  Compression Ratio: 2-stroke (Wossner and OEM)

  
  

Cross-Reference OEM Part Numbers

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  Piston Kit: 8107DB

  
  


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  Lock: CW15

  
  


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  Pin: WP032

  
  


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  Ring Set: RSB5400

  
  


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  Rod: P2009

  
  

Vehicle Fitments

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  Honda CR125 (1990–1991)