20 Tooth Sprocket for #41 and #420 Chain with ISO Mounting Pattern
- Made from Tempered Aircraft Grade Aluminum Alloy
- 20 Teeth
- For #41 and #420 Chain
- ISO Disc Brake Rotor Mounting Pattern
- 35.5mm Bore
- Six 5.5mm ID Bolt Holes Equally Spaced @ 60 Degrees
- 44mm Bolt Circle Diameter