This Wossner piston kit is engineered for Yamaha YSR 50 models up to 1992. Designed and manufactured in Germany, the forged piston provides high strength, optimised heat management, and reliable performance in high-displacement engines.

Features

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  Forged piston construction for high strength and durability

  
  


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  Optimised for efficient heat transfer from combustion chamber to cylinder wall

  
  


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  Elliptical profile distributes pressure evenly and reduces risk of piston collapse under thermal load

  
  


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  German precision manufacturing for consistent quality and fitment

  
  

Specifications

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  Piston number: 8268DA

  
  


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  Bore size: 40 mm

  
  


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  Stroke: 39 mm

  
  


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  Compression height: 23.3 mm

  
  


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  OEM compression ratio: 00:01

  
  


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  Number of rings: 2

  
  


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  Clip part number: CW12

  
  


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  Pin size: 12 mm

  
  


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  Pin part number: WP101

  
  


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  Cylinders: 1
  
  
  
  Vehicle Fitments

  
  


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  Yamaha YSR 50 (up to 1992)