PISTON KIT 01-08 KTM50 SX, WOSSNER 8225DC FORGED MX

This Wossner forged piston kit with a 39.52mm bore (+0.02mm oversize) is specifically engineered for KTM SX50 models from 2001 to 2008. Designed to deliver consistent performance in high-revving two-stroke engines, it features a precision-machined elliptical profile for even load distribution and superior durability. Manufactured in Germany, this piston is ideal for engines requiring minimal oversizing during rebuilds.

Features

• 
  

  Forged construction ensures enhanced strength and long-lasting performance

  
  


• 
  

  Optimised for effective heat transfer from combustion chamber to cylinder walls

  
  


• 
  

  Elliptical design minimises stress concentrations and prevents piston collapse

  
  


• 
  

  Made in Germany

  
  

Specifications

• 
  

  Bore: 39.52mm

  
  


• 
  

  Actual Bore: 39.47mm

  
  


• 
  

  Engine Displacement: 50 cm³

  
  


• 
  

  Stroke: 40.00mm

  
  


• 
  

  Clearance: 0.04mm

  
  


• 
  

  Compression Ratio: 2-stroke (Wossner and OEM)

  
  


• 
  

  Compression Height: 21.60mm

  
  


• 
  

  Lock Part Number: CW12

  
  


• 
  

  Pin Part Number: WP101

  
  


• 
  

  Ring Set Part Number: RSB3950

  
  

Vehicle Fitments

• 
  

  2001 KTM SX50

  
  


• 
  

  2002 KTM SX50

  
  


• 
  

  2003 KTM SX50

  
  


• 
  

  2004 KTM SX50

  
  


• 
  

  2005 KTM SX50

  
  


• 
  

  2006 KTM SX50

  
  


• 
  

  2007 KTM SX50

  
  


• 
  

  2008 KTM SX50