PISTON KIT 05-09 CR250 66.40 A, WOSSNER 8171DA HONDA MX

This Wossner piston kit is designed for the Honda CR250R models from 2005 to 2007, featuring a 66.40mm bore size. Manufactured in Germany, it delivers enhanced strength and thermal management for high-performance two-stroke engines. The kit utilises an elliptical design for uniform load distribution, reducing the risk of piston collapse under high-temperature conditions.

Features

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  Forged piston design for superior strength and performance

  
  


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  Engineered for optimal combustion chamber heat transfer

  
  


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  Elliptical geometry ensures even thrust load distribution

  
  


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  Designed to resist piston collapse during thermal expansion

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore: 66.40 mm

  
  


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  Actual diameter: 66.34 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Compression height: 38.00 mm

  
  


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  Display: 249 cm³

  
  


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  Stroke: 72.00 mm

  
  


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  Wossner compression ratio: 2-stroke

  
  


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  OEM compression ratio: 2-stroke

  
  

Cross-Reference OEM Part Numbers

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  13110-KSK-730

  
  


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  13120-KSK-730

  
  


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  13121-KSK-732

  
  


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  13111-KSK-730

  
  


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  90601-430-000

  
  


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  09104866

  
  

Vehicle Fitments

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  2005 Honda CR 250 R

  
  


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  2006 Honda CR 250 R

  
  


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  2007 Honda CR 250 R