A2

90 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 90 Teeth F4 Mounting Pattern 14.62" OD (approximate) 2.125" ID 2.559" Bolt Circle Diameter Four 0.244" ID Bolt Holes

90 Tooth 2-1/8" Bore 5-Hole Sprocket for 1/2"x 1/8" Bicycle Chain 90 tooth bicycle chain sprocket. Made of aircraft-grade tempered (hardened) aluminum alloy.14.62" OD2.13" IDFive 5.25mm ID mounting holes. Fits onto our 5-hole freewheel item # FWM-205. Compatible with 1/2" x 1/8" bicycle chain (#410 chain).

90 Tooth Sprocket for #35 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #35 Chain90 TeethF5 Mounting Pattern10.964" OD2.125" IDFive 5.2mm ID Bolt Holes2.638" Bolt Circle Diameter

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

90 Tooth Sprocket for #25 Chain with F4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum AlloyF4 Mounting Pattern90 TeethFor #25 Chain7.25" Outside Diameter54.1mm ID BoreFour 6.2mm ID Bolt Holes @ 90 degrees65mm Bolt Circle Diameter

90 Tooth Sprocket for #35 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy 90 TeethFor #35 ChainG1 Mounting Pattern2" BoreFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter

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 #428 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum Alloy 90 TeethFor #428 Chain2" BoreFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter

90 Tooth Sprocket for 1/2" x 1/8" Bicycle Chain (G1) 90 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 14.618" OD2" ID, 2.875" bolt circle diameter. Four 3/8" ID bolt holes. Made of aircraft-grade tempered (hardened) aluminum alloy.

90 Tooth Sprocket for T8F (8mm) Chain with G1 Mounting Pattern Made from Aircraft Grade Tempered (Hardened) Aluminum For T8F (8mm) Chain 90 Teeth G1 Mounting Pattern 2" ID Four 0.375" (3/8") ID Bolt Holes 2.875" Bolt Circle Diameter

91 Tooth Sprocket for #410 Chain with ISO Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy91 TeethFor #410 (1/2"x1/8") Bicycle ChainISO Disc Brake Rotor Mounting Pattern44mm Bolt Circle Diameter35.5mm BoreSix 5.5mm ID Bolt Holes Equally Spaced @ 60 Degrees

95 Tooth Sprocket for #35 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #35 Chain95 TeethF5 Mounting Pattern11.561" OD2.125" IDFive 5.2mm ID Bolt Holes2.638" Bolt Circle Diameter