This Wossner forged piston kit features a 57.00mm bore size (56.95mm actual), offering a +1mm oversize upgrade for high-performance applications. Engineered in Germany, the piston design enhances heat dissipation and load distribution, ensuring durability under high stress. Its elliptical profile aids in maintaining consistent contact and reducing piston collapse under thermal expansion.

Features

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  Forged piston design for increased strength and durability

  
  


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  Elliptical shape ensures even thrust load distribution

  
  


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  Optimised for effective combustion heat transfer

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore Size: 57.00mm (actual 56.95mm)

  
  


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  Displacement: 124 cm³

  
  


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  Stroke: 50.60 mm

  
  


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  Clearance: 0.05 mm

  
  


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  Compression Ratio (Wossner): 2-stroke

  
  


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  Compression Ratio (OEM): 2-stroke

  
  


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  Dome Volume: Flat

  
  


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  Compression Height: 25.00 mm

  
  


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  Lock Part Number: CW16

  
  


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  Pin Part Number: WP036

  
  


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  Ring Set Part Number: 2 x RSB5700

  
  

Cross-Reference OEM Part Numbers

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  56-W940+100.WO

  
  

Vehicle Fitments

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  Cagiva 125 Mito (2000–2012)

  
  


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  Cagiva 125 Raptor (2000–2012)

  
  


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  Cagiva 125 Supercity (2000–2012)

  
  


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  Cagiva 125 Planet (2000–2012)

  
  


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  Cagiva 125 W8 / Head 200H,M (2000–2012)