Wossner forged piston kit designed for Suzuki RM125 models from 1989 to 1999, featuring a 56.00mm bore for major oversize engine repairs. This piston is engineered for exceptional strength, efficient heat transfer, and optimised performance under high-stress conditions. The elliptical design enhances load distribution, reducing the risk of piston failure during thermal expansion. Manufactured in Germany for precision and reliability.

Features

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  Forged construction offering superior strength and durability

  
  


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  Designed for efficient heat transfer from combustion chamber to cylinder walls

  
  


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  Elliptical design promoting uniform bearing surface and minimising localised pressure

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore Size: 56.00mm

  
  


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  Actual Piston Size: 55.95mm

  
  


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  Display Capacity: 123 cm³

  
  


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  Stroke: 54.00mm

  
  


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  Clearance: 0.05mm

  
  


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  Compression Ratio (Wossner): 2-stroke

  
  


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  Compression Ratio (OEM): 2-stroke

  
  


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  Compression Height: 29.50mm

  
  

Cross-Reference OEM Part Numbers

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  Piston Kit: 8055D200

  
  


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  Lock: CW15

  
  


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  Pin: WP032

  
  


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  Ring Set: RSB5600

  
  


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  Additional Part Number: 56-W641.200.WO

  
  

Vehicle Fitments

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  1989 Suzuki RM 125

  
  


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  1990 Suzuki RM 125

  
  


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  1991 Suzuki RM 125

  
  


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  1992 Suzuki RM 125

  
  


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  1993 Suzuki RM 125

  
  


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  1994 Suzuki RM 125

  
  


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  1995 Suzuki RM 125

  
  


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  1996 Suzuki RM 125

  
  


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  1997 Suzuki RM 125

  
  


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  1998 Suzuki RM 125

  
  


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  1999 Suzuki RM 125