30 Tooth Sprocket for 1/2" x 1/8" Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For 1/2" x 1/8" (#410) Chain 30 Teeth F4 Mounting Pattern 54.1mm ID 65mm Bolt Circle Diameter Four 6.2mm ID Bolt Holes
35 Tooth Sprocket for 1/2" x 1/8" Bicycle Chain (G1) 35 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 5.376" OD2" ID2.875" bolt circle diameter. Four 3/8" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
35 Tooth 4-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain 35 tooth 4-hole freewheel sprocket for 1/2"x1/8" (#410) bicycle chain. 5.376" OD2.125" ID2.559" bolt circle diameter. Four 0.244" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
40 Tooth Sprocket for 1/2" x 1/8" Bicycle Chain (G1) 40 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 6.015" OD2" ID2.875" bolt circle diameter. Four 3/8" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
40 Tooth 4-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain Made of aircraft-grade tempered (hardened) aluminum alloy. For 1/2"x1/8" (#410) Bicycle Chain F4 Mounting Pattern 6" OD 2.125" ID 2.559" Bolt Circle Diameter Four 0.244" ID Bolt Holes
45 Tooth Sprocket for 1/2" x 1/8" (#410) Bicycle Chain with G1 Mounting Pattern Made of aircraft-grade tempered (hardened) aluminum alloy.45 teeth.For 1/2" x 1/8" (#410) bicycle chain.7.928" OD2" ID2.875" bolt circle diameter.Four 0.375" (3/8") ID bolt holes.
45 Tooth 4-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain 45 tooth 4-hole freewheel sprocket for 1/2"x1/8" (#410) bicycle chain. 7.95" OD2.125" ID2.559" bolt circle diameter. Four 0.244" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
50 Tooth Sprocket for 1/2" x 1/8" Bicycle Chain (G1) 50 tooth sprocket. 8.884" OD2" ID2.875" bolt circle diameter. Four 3/8" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
50 Tooth 4-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain 50 tooth 4-hole freewheel sprocket for 1/2"x1/8" (#410) bicycle chain. 8.884" OD2.125" ID2.559" bolt circle diameter. Four 0.244" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
55 Tooth Sprocket for 1/2" x 1/8" #410 Bicycle Chain (G1) 55 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 9.362" ODG1 Mounting Pattern2" ID2.875" bolt circle diameter.Four 3/8" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
55 Tooth 4-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain 55 tooth 4-hole freewheel sprocket for 1/2"x1/8" (#410) bicycle chain. 9.362" OD2.125" ID2.559" bolt circle diameter. Four 0.244" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.
60 Tooth Sprocket for 1/2" x 1/8" Bicycle Chain (G1) 60 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 9.840" OD2" ID2.875" bolt circle diameter. Four 3/8" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.