Wossner forged piston kit 8161D160 is a +1.60 oversize piston specifically designed for 1-ring Honda CR250R models from 1997 to 2001. With a 68.00 mm bore and 67.94 mm actual piston diameter, this German-manufactured piston incorporates a precision elliptical design for improved heat transfer and load distribution, enhancing durability and engine reliability in 2-stroke applications.

Features

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  High-strength forged construction for extended performance

  
  


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  Elliptical design optimises load distribution and prevents piston collapse

  
  


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  Efficient combustion heat dissipation to cylinder walls

  
  


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  Manufactured in Germany with strict tolerances

  
  

Specifications

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  Bore Size: 68.00 mm

  
  


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  Actual Piston Diameter: 67.94 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: 8161D160

  
  


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  Lock: CW18

  
  


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  Pin: WP033

  
  


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  Ring Set: RSB6800

  
  


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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)