Each kit comes complete with:
 

• one chromoly steel front sprocket
   
• Supersprox Stealth gold rear sprocket
   
• D.I.D. 525ZVM2 Series X-ring chain cut to length
   
• one rivet style master link.
  
   

The average mileage on each kit is 17-20k miles if everything is maintained and lubed properly. You choose the gearing.
 

Sprocket Center also offers heavier and stronger 530 conversion kits and also 520 conversion kits with steel and alloy rear sprockets. Call the sales staff for more details.