This Wossner forged piston kit features a 49mm bore (48.95mm) and is built for the 1984 Yamaha YZ80. Manufactured in Germany, it provides superior structural integrity and efficient heat dissipation. Its elliptical design ensures uniform bearing surface during thermal expansion, distributing thrust loads evenly to prevent piston collapse.

Features

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  Forged piston construction for maximum strength

  
  


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  Designed for optimal heat transfer to the cylinder walls

  
  


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  Elliptical shape promotes even pressure distribution under expansion

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore size: 49mm (48.95mm)

  
  


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  Display volume: 82 cm³

  
  


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  Stroke: 84.00 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Compression height: 30.80 mm

  
  


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  Theoretical weight: Not specified

  
  


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  Compression ratio: 2-stroke (Wossner and OEM)

  
  

Cross-Reference OEM Part Numbers

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  Piston: 8214D100

  
  


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  Lock: W12

  
  


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  Pin: WP091

  
  


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  Ring Set: RSB4900

  
  

Vehicle Fitments

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  Yamaha YZ80 1984