70 Tooth Sprocket for #35 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #35 Chain70 TeethF5 Mounting Pattern8.575" OD2.125" IDFive 5.2mm ID Bolt Holes2.638" Bolt Circle Diameter
70 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 70 Teeth F5 Mounting Pattern 11.5" OD 2.125" ID 2.638" Bolt Circle Diameter Five 5.25mm ID Bolt Holes
70 Tooth Sprocket for #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #428 Chain 70 Teeth F5 Mounting Pattern11.4" OD 2.125" ID 2.638" Bolt Circle Diameter Five 5.25mm ID Bolt Holes
70 Tooth Sprocket for #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy 70 TeethFor #428 Chain2" BoreFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter
70 Tooth Sprocket for 1/2" x 1/8" Bicycle Chain (G1) 70 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 11.75" OD2" ID2.875" bolt circle diameter. Four 3/8" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
72 Tooth Freewheel Sprocket for #35 Chain with F5 Mounting Pattern Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #35 Chain 72 Teeth F5 Mounting Pattern 54.1mm (2.13") ID Five 5.25mm (0.2067") ID Bolt Holes 67mm (2.6378") Bolt Circle Diameter
72 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 72 Teeth F4 Mounting Pattern 54.1mm ID 65mm Bolt Circle Diameter Four 6.2mm ID Bolt Holes
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
72 Tooth Sprocket for #410 (1/2" x 1/8") Bicycle Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #410 (1/2" x 1/8") Bicycle Chain 72 Teeth F4 Mounting Pattern 54.1mm ID 65mm Bolt Circle Diameter Four 6.2mm ID Bolt Holes
72 Tooth Sprocket for #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #428 Chain 72 Teeth F4 Mounting Pattern 54.1mm ID 65mm Bolt Circle Diameter Four 6.2mm ID Bolt Holes
74 Tooth Sprocket for #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #428 Chain 74 Teeth R48-8 Mounting Pattern 48mm ID Four 8.8mm ID Bolt Holes Equally Spaced @ 90 Degrees 68mm Bolt Circle Diameter
75 Tooth 4-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For 1/2" x 1/8" (#410) Bicycle Chain 75 Teeth F4 Mounting Pattern 12.23" OD (approximate) 2.125" ID 2.559" Bolt Circle Diameter Four 0.244" ID Bolt Holes