Component: Cover
Width - Millimeter: 155.575
Inch - Metric: Inch
Material: Aluminum
Outside Diameter - Inch: 12.25

Outside Diameter - Millimeter: 311.15
Other Features: Components May or May Not Intermix Among Brands
Coupling Type: Chain Coupling
Width - Inch: 6.125

Component: Cover
Width - Millimeter: 181
Inch - Metric: Metric
Material: Die-Cast Aluminum
Outside Diameter - Inch: 12.087

Outside Diameter - Millimeter: 307
Other Features: Components May or May Not Intermix Among Brands
Coupling Type: Chain Coupling
Width - Inch: 7.126