The Wossner 8022D100 piston with a 69mm bore (68.94mm actual size) is engineered for high durability and strength, fitting Suzuki RM250 (1989-1995) and RMX250 (1993-1995) models. Forged in Germany, it is designed to maximise heat transfer from the combustion chamber to the cylinder walls. The elliptical piston shape promotes even distribution of thrust loads under heat expansion, reducing localised stresses and preventing piston collapse.

Features

• 
  

  Forged construction for enhanced strength and resilience

  
  


• 
  

  Optimised for efficient heat transfer to cylinder walls

  
  


• 
  

  Elliptical design for uniform load distribution under thermal expansion

  
  


• 
  

  Manufactured in Germany

  
  

Specifications

• 
  

  Bore: 69mm (actual size 68.94mm)

  
  


• 
  

  Part Number: 56-W642_200.WO

  
  


• 
  

  Lock Part Number: CW18

  
  


• 
  

  Pin Part Number: WP033

  
  


• 
  

  Ring Set Part Number: RSB6700 x 2

  
  


• 
  

  Displacement: 246 cm³

  
  


• 
  

  Stroke: 70.80mm

  
  


• 
  

  Clearance: 0.06mm

  
  


• 
  

  Wossner Compression Ratio: 2-stroke

  
  


• 
  

  OEM Compression Ratio: 2-stroke

  
  


• 
  

  Compression Height: 37.00mm

  
  

Cross-Reference OEM Part Numbers

• 
  

  Piston: 12110-28C11-0F0, 12110-29E20-0F0

  
  


• 
  

  Ring, Piston: 12141-41600, 12141-41620

  
  


• 
  

  Pin, Piston: 12151-28C00, 12151-37F00

  
  


• 
  

  Circlip: 09381-18002

  
  

Vehicle Fitments

• 
  

  1989-1995 Suzuki RM250

  
  


• 
  

  1993-1995 Suzuki RMX250