54 Tooth Sprocket for T8F (8mm) Chain with ISO Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy54 TeethFor T8F ChainISO Disc Brake Rotor Mounting Pattern44mm Bolt Circle Diameter35.5mm BoreSix 5.5mm ID Bolt Holes Equally Spaced @ 60 Degrees
100 Tooth Sprocket for #25 Chain with F5 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy F5 Mounting Pattern 100 Teeth For #25 Chain 54.1mm (2.13") ID Five 5.25mm (0.2067") ID Bolt Holes 67mm (2.6378") Bolt Circle Diameter
98 Tooth 4-Hole Freewheel Sprocket for #35 Chain Made from Aircraft-Grade Tempered (Hardened) Aluminum AlloyFor #35 Chain98 TeethF4 Mounting Pattern8.8" (223mm) OD2.13" (54.1mm) IDFour 6.2mm ID Bolt Holes2.559" (65mm) Bolt Circle Diameter
60 Tooth Sprocket for #35 Chain with F4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy60 TeethFor #35 ChainF4 Mounting Pattern54.1mm BoreFour 6.2mm ID Bolt Holes Equally Spaced @ 90 Degrees65mm Bolt Circle Diameter
50 Tooth Sprocket for #35 Chain with F4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy50 TeethFor #35 ChainF4 Mounting Pattern54.1mm BoreFour 6.2mm ID Bolt Holes Equally Spaced @ 90 Degrees65mm Bolt Circle Diameter
30 Tooth Sprocket for #415 Chain with ISO Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy30 TeethFor #415 ChainISO Disc Brake Rotor Mounting Pattern44mm Bolt Circle Diameter35.5mm BoreSix 5.5mm ID Bolt Holes Equally Spaced @ 60 Degrees
86 Tooth Sprocket for #25 Chain with ISO Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy86 TeethFor #25 ChainISO Disc Brake Rotor Mounting Pattern35.5mm BoreSix 5.5mm ID Bolt Holes Equally Spaced @ 60 Degrees44mm Bolt Circle Diameter
65 Tooth Sprocket for #35 Chain with F4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy65 TeethFor #35 ChainF4 Mounting Pattern54.1mm BoreFour 6.2mm ID Bolt Holes Equally Spaced @ 90 Degrees65mm Bolt Circle Diameter
61 Tooth Sprocket for #35 Chain with F4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy61 TeethFor #35 ChainF4 Mounting Pattern54.1mm BoreFour 6.2mm ID Bolt Holes Equally Spaced @ 90 Degrees65mm Bolt Circle Diameter
150 Tooth Sprocket for #25 Chain with F5 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy F5 Mounting Pattern 150 Teeth For #25 Chain 54.1mm (2.13") ID Five 5.25mm (0.2067") ID Bolt Holes 67mm (2.6378") Bolt Circle Diameter
18 Tooth Sprocket for #415 Chain with ISO Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy18 TeethFor #415 ChainISO Disc Brake Rotor Mounting Pattern44mm Bolt Circle Diameter35.5mm BoreSix 5.5mm ID Bolt Holes Equally Spaced @ 60 Degrees
65 Tooth Sprocket for #25 Chain with ISO Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy65 TeethFor #25 ChainISO Disc Brake Rotor Mounting Pattern35.5mm BoreSix 5.5mm ID Bolt Holes Equally Spaced @ 60 degrees44mm Bolt Circle Diameter