72 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 72 Teeth G1 Mounting Pattern 11.8" OD 2" ID 2.875" Bolt Circle Diameter Four 3/8" ID Bolt Holes
75 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #41 and #420 Chain75 TeethF5 Mounting Pattern12.3" OD2.125" ID2.638" Bolt Circle DiameterFive 5.25mm ID Bolt Holes
80 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 80 Teeth G1 Mounting Pattern 13" OD 2" ID 2.875" Bolt Circle Diameter Four 3/8" ID Bolt Holes
80 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #41 and #420 Chain80 TeethF5 Mounting Pattern13.1" OD2.125" ID2.638" Bolt Circle DiameterFive 5.25mm ID Bolt Holes
85 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 85 Teeth G1 Mounting Pattern 13.8" OD 2" ID 2.875" Bolt Circle Diameter Four 3/8" ID Bolt Holes
85 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #41 and #420 Chain85 TeethF5 Mounting Pattern13.9" OD2.125" ID2.638" Bolt Circle DiameterFive 5.25mm ID Bolt Holes
90 Tooth Sprocket for #41 and #420 Chain Made from 2024-T3 Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 90 Teeth G1 Mounting Pattern 14.6" OD 2" ID 2.875" Bolt Circle Diameter Four 3/8" ID Bolt Holes
90 Tooth Sprocket for #41 and #420 Chain Made from Hardened Aircraft Grade AluminumFor #41 and #420 Chain90 TeethF5 Mounting Pattern14.6" OD2.125" ID2.638" Bolt Circle DiameterFive 5.25mm ID Bolt Holes
30 Tooth Sprocket for #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #428 Chain30 TeethG1 Mounting Pattern2" BoreFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter
40 Tooth Sprocket for #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #428 Chain40 TeethG1 Mounting Pattern2" BoreFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter
50 Tooth Sprocket for #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #428 Chain50 TeethG1 Mounting Pattern2" BoreFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter
60 Tooth Sprocket for #428 Chain Made from Aluminum60 TeethFor #428 Chain2" BoreFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter