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Sunstar Steel Rear Sprocket 51 Tooth (2-139051)


Product Description

  • Exclusive heat treatment for added strength and wear resistance
  • Most are zinc plated and have a baked on durable paint process for corrosion resistance
  • The strongest, longest lasting steel replacement sprocket available
  • Nearly all motorcycles come equipped from the factory with this sprocket

**NOTE** You will receive the same pitch sprocket as you bike has for OEM. If you upgraded your sprockets and chain to a different size other than stock please contact us so we can make sure you will receive the proper sprocket.


  • 1998-2012 KTM 65 SX
  • 2008-2009 KTM 65 XC

Other Details

Rear Sprocket

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