Rear Sprocket Steel 40t 520 Blk Yam

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  • Regular price $46.99
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  • The only dual material rear sprocket available for both street and off road applications

  • Steel teeth last up to 3 times longer than aluminum

  • 7075-T651 Aluminum core, lighter than steel

  • CNC machined, providing perfect fit on the wheel

  • Larger tooth radius reduces chain friction and extends chain life

  • U. S. and European patented