Chain Pitch - Inch: 0.5
Chain Size: 40
Chain Pitch - Millimeter: 12.7
Pitch Diameter - Inch: 6.691
Inch - Metric: Inch

Material: Steel
Outside Diameter - Inch: 6.972
Other Features: Black Oxide Finish | For X-Weld On Hub
Pitch Diameter - Millimeter: 169.94
Mounting Method: Finished Bore

Chain Pitch - Inch: 0.625
Chain Size: 50
Chain Pitch - Millimeter: 15.875
Pitch Diameter - Inch: 8.364
Inch - Metric: Inch

Material: Steel
Outside Diameter - Inch: 8.715
Other Features: Black Oxide Finish | For X-Weld On Hub
Pitch Diameter - Millimeter: 212.446
Mounting Method: Finished Bore