These are stock parts — We also have Made-to-Order parts or  Contact Us
  
| Effective Number Of Teeth | Actual No. of Teeth | Pitch Diameter | Maximum Bore | Stock Bore | Hub Diameter | Length Through Bore | Sprocket Weight | 
|---|---|---|---|---|---|---|---|
| 10.5 | 21 | 3.392 | 1.750" | .625" | 2.71" | 1.000" | 1.80lbs | 
 
            
                
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