72 Tooth Aluminum Sprocket for #420 Chain with Custom Mounting Pattern
- Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy
- Custom Mounting Pattern
- 72 Teeth
- For #40, #41, and #420 Chain
- 2.125" ID Bore
- Four 0.325" ID Bolt Holes @ 90 degrees
- 2.74" Bolt Circle Diameter