This Wossner forged piston kit with a 72mm bore (actual 71.94mm) is designed for the Bultaco TS250 model year 1970. Engineered for two-stroke performance, it offers exceptional strength and thermal efficiency through precise German manufacturing.

Features

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  Forged aluminium construction for superior durability under high loads

  
  


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  Elliptical skirt design ensures balanced thrust load distribution and minimises distortion

  
  


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  Designed for optimal heat transfer from the combustion chamber to cylinder walls

  
  


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  Manufactured in Germany with precision tolerances

  
  

Specifications

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  Bore Size: 72.00mm (actual 71.94mm)

  
  


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  Stroke: 60.00 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Wossner Compression Ratio: 2 stroke

  
  


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  OEM Compression Ratio: 2 stroke

  
  


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  Compression Height: 29.00 mm

  
  


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  Lock Part Number: CW16

  
  


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  Pin Part Number: WP027

  
  


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  Ring Set Part Number: RSB7200

  
  

Cross-Reference OEM Part Numbers

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  09104904

  
  

Vehicle Fitments

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  Bultaco TS250 1970