Wossner forged piston kit 8190DB is a +0.01mm oversized piston specifically crafted for the Honda MTX 125 RALLY models from 1988 to 1990. With a 56.01mm bore and high-precision design, it provides excellent strength, thermal efficiency, and reliability for standard rebuild applications. Made in Germany, this piston meets the demanding requirements of high-performance engines.

Features

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  Forged construction provides superior mechanical strength

  
  


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  Elliptical profile ensures uniform bearing surface under thermal expansion

  
  


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  Optimised heat dissipation from combustion chamber to cylinder walls

  
  


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  Even distribution of thrust loads reduces the risk of piston collapse

  
  


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  Made in Germany

  
  

Specifications

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  Bore: 56.01mm (Measured: 55.97mm)

  
  


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  Display Volume: 124 cm³

  
  


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  Stroke: 50.60mm

  
  


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  Clearance: 0.04mm

  
  


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  Compression Height: 30.60mm

  
  


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  Wossner Compression Ratio: 2-stroke

  
  


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  OEM Compression Ratio: 2-stroke

  
  


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  Part No.: 56-W905.B (Wossner Piston Honda MTX125 56.01 mm Bore, PN# 8190DB)

  
  


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  Lock P/N: CW16

  
  


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  Pin P/N: WP036

  
  


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  Ring Set P/N: RSB5600 x 2

  
  

Cross-Reference OEM Part Numbers

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  Not provided

  
  

Vehicle Fitments

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  1988 Honda MTX 125 RALLY

  
  


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  1989 Honda MTX 125 RALLY

  
  


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  1990 Honda MTX 125 RALLY