Wossner forged piston kit 8161D060 is a +0.60 oversize piston crafted for Honda CR250R models from 1997 to 2001 with a 1-ring setup. Featuring a 67.00 mm bore and 66.94 mm piston diameter, it combines German engineering and an elliptical design to deliver improved heat dissipation and mechanical load distribution in 2-stroke engines.

Features

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  Forged piston for high strength and longevity

  
  


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  Elliptical profile ensures even pressure distribution under heat expansion

  
  


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  Improved heat transfer to cylinder walls

  
  


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  Precision-manufactured in Germany

  
  

Specifications

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  Bore Size: 67.00 mm

  
  


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  Actual Piston Diameter: 66.94 mm

  
  


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  Display (Displacement): 290 cm³

  
  


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  Stroke: 72.00 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Compression Ratio: 2-stroke (Wossner and OEM)

  
  


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  Compression Height: 38.00 mm

  
  

Cross-Reference Component Part Numbers

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  Piston Kit: 8161D060

  
  


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  Lock: CW18

  
  


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  Pin: WP033

  
  


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  Ring Set: RSB6700

  
  


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  Rod: P2021

  
  

Vehicle Fitments

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  1997 Honda CR250R (1-ring)

  
  


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  1998 Honda CR250R (1-ring)

  
  


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  1999 Honda CR250R (1-ring)

  
  


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  2000 Honda CR250R (1-ring)

  
  


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  2001 Honda CR250R (1-ring)