120 Tooth Sprocket for #25 Chain with G1 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum AlloyG1 Mounting Pattern120 TeethFor #25 Chain2" ID BoreFour 0.375" ID Bolt Holes Equally Spaced @ 90 degrees2.875" Bolt Circle Diameter
133 Tooth Sprocket for T8F (8mm) Chain with G1 Mounting Pattern Made from Aircraft Grade Tempered (Hardened) Aluminum For T8F (8mm) Chain 133 Teeth G1 Mounting Pattern 2" ID Four 0.375" (3/8") ID Bolt Holes 2.875" Bolt Circle Diameter
140 Tooth Sprocket for #25 Chain with F4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum AlloyF4 Mounting Pattern140 TeethFor #25 Chain54.1mm BoreFour 6.2mm ID Bolt Holes @ 90 degrees65mm Bolt Circle Diameter
150 Tooth Sprocket for #25 Chain with F4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum AlloyF4 Mounting Pattern150 TeethFor #25 Chain54.1mm BoreFour 6.2mm ID Bolt Holes @ 90 degrees65mm Bolt Circle Diameter
150 Tooth Sprocket for #25 Chain with G1 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum AlloyG1 Mounting Pattern150 TeethFor #25 Chain2" ID BoreFour 0.375" ID Bolt Holes Equally Spaced @ 90 Degrees2.875" Bolt Circle Diameter
22 Tooth Sprocket for #415 Chain with F5 Mounting Pattern Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #415 Chain 22 Teeth F5 Mounting Pattern 2.13" ID 2.6378" Bolt Circle Diameter Five 5.25mm ID Mounting Holes
23 Tooth Sprocket for #40 Chain Made from Aircraft Grade Tempered (Hardened) Aluminum Alloy For #40 Chain 23 Teeth F4 Mounting Pattern 54.1mm ID Bore Four 6.2mm ID Bolt Holes Equally Spaced @ 90 Degrees 65mm Bolt Circle Diameter
24 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 24 Teeth F5 Mounting Pattern 4.6" OD 2.13" ID 2.6378" Bolt Circle Diameter Five 5.25mm ID Mounting Holes
25 Tooth 4-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor 1/2"x1/8" (#410) Bicycle Chain25 TeethF4 Mounting Pattern4.258" OD2.125" ID2.559" Bolt Circle DiameterFour 0.244" ID Bolt Holes
25 Tooth Sprocket for #41 and #420 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 25 Teeth F5 Mounting Pattern4.25" OD 2.13" ID 2.6378" Bolt Circle Diameter Five 5.25mm ID Mounting Holes
25 Tooth Sprocket for #415 Chain with F5 Mounting Pattern Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy For #415 Chain 25 Teeth F5 Mounting Pattern 4.25" OD 2.13" ID 2.6378" Bolt Circle Diameter Five 5.25mm ID Mounting Holes
26 Tooth Sprocket for #41 and #420 Chain Made from Aircraft Grade Tempered (Hardened) Aluminum Alloy For #41 and #420 Chain 26 Teeth F4 Mounting Pattern 54.1mm ID Bore Four 6.2mm ID Bolt Holes Equally Spaced @ 90 Degrees 65mm Bolt Circle Diameter