This Wossner forged piston kit features a 63.50mm nominal bore (actual 63.44mm) and is specifically designed for the ROTAX SWM175 models from 1977 to 1982. Built for high strength and consistent performance, it is ideal for two-stroke engine configurations.

Features

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  Forged construction delivers enhanced strength and durability

  
  


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  Precision-engineered for efficient heat transfer from the combustion chamber to the cylinder wall

  
  


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  Elliptical piston design minimises pressure points and improves thrust load distribution

  
  


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  Manufactured in Germany to stringent quality standards

  
  

Specifications

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  Bore Size: 63.50mm (actual 63.44mm)

  
  


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  Stroke: 57.50 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: 30.00 mm

  
  


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  Lock Part Number: CW18

  
  


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  Pin Part Number: WP040

  
  


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  Ring Set Part Number: RSB6350 x 2

  
  

Vehicle Fitments

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  ROTAX SWM175 1977–1982