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34 Tooth Sprocket for #410 (1/2" x 1/8") Bicycle Chain Made from Aircraft Grade Tempered (Hardened) AluminumF5 Mounting Pattern For #410 (1/2" x 1/8") Bicycle Chain 34 Teeth 145mm (5.7") OD 54.1mm ID Five 5.2mm ID Bolt Holes Equally Spaced at 72 Degrees 67mm Bolt Circle Diameter

36 Tooth Sprocket for #410 (1/2" x 1/8") Bicycle Chain with F4 Mounting Pattern Made from Aircraft Grade Tempered (Hardened) Aluminum For #410 (1/2" x 1/8") Bicycle Chain36 TeethF4 Mounting Pattern 2.13" (54.1mm) ID Four 0.244" (6.2mm) ID Bolt Holes Equally Spaced at 90 Degrees 2.559" (65mm) Bolt Circle Diameter

36 Tooth Sprocket for #410 (1/2" x 1/8") Bicycle Chain Made from Aircraft Grade Tempered (Hardened) Aluminum For #410 (1/2" x 1/8") Bicycle Chain 36 Teeth 152mm (6") OD 54.1mm ID Five 5.2mm ID Bolt Holes Equally Spaced at 72 Degrees 67mm Bolt Circle Diameter

36 Tooth Sprocket for 1/2" x 1/8" (#410) Bicycle Chain Made from Aircraft Grade AluminumFor 1/2" x 1/8" (#410) Bicycle Chain36 Teeth6.015" OD2" IDFour 3/8" ID Bolt Holes2.875" Bolt Circle Diameter

36 Tooth Sprocket for #415 Chain with F4 Mounting Pattern Made from Zinc-Plated Steel For #415 Chain (not compatible with #408 or #410 chain) 36 Teeth F4 Mounting Pattern 2.13" (54.1mm) ID Four 0.244" (6.2mm) ID Bolt Holes Equally Spaced @ 90 Degrees 2.559" (65mm) Bolt Circle Diameter

4 Inch Jackshaft Kit with 10 Tooth and 17 Tooth Sprockets for #41 and #420 Chain Weld-on jackshaft kit with 10-tooth and 17-tooth sprockets for a 70% increase or decrease in gear ratio. 4-1/2" long x 5/8" OD jackshaft with keyway, 10-tooth and 17-tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on steel bearing hangers, and two jackshaft collars with set screws. This is a complete kit that contains everything needed to install a weld-on...

4 Inch Jackshaft Kit with 12 Tooth and 17 Tooth Sprockets for #41 and #420 Chain Weld-on jackshaft kit with 12-tooth and 17-tooth sprockets for a 41.7% increase or decrease in gear ratio. 4-1/2" long x 5/8" OD jackshaft with keyway, 10-tooth and 17-tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on steel bearing hangers, and two jackshaft collars with set screws. This is a complete kit that contains everything needed to install a weld-on...

4 Inch Jackshaft Kit with 15 Tooth and 20 Tooth Sprockets for #410 (1/2" x 1/8") Chain Weld-on jackshaft kit with 15-tooth and 20-tooth sprockets for a 25% increase or decrease in gear ratio. 4-1/2" long x 5/8" OD jackshaft with keyway, 15-tooth and 20-tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on steel bearing hangers, and two jackshaft collars with set screws. This is a complete kit that contains everything needed to install a weld-on...

4 Inch Jackshaft Kit with 15 Tooth and 25 Tooth Sprockets for #410 (1/2" x 1/8") Chain Weld-on jackshaft kit with 15-tooth and 25-tooth sprockets for a 40% increase or decrease in gear ratio. 4-1/2" long x 5/8" OD jackshaft with keyway, 15-tooth and 25-tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on steel bearing hangers, and two jackshaft collars with set screws. This is a complete kit that contains everything needed to install a weld-on...

Jackshaft Kit with 8 Tooth and 17 Tooth Sprockets for #41 and #420 Chain Weld-on jackshaft kit with 8-tooth and 17-tooth sprockets for a 112.5% increase or decrease in gear ratio. 4" long 5/8" OD jackshaft with keyway. 8 tooth and 17-tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on bearing hangers, and two axle collars with set screws. This is a complete kit that contains everything needed to install a weld-on jackshaft. ...

Jackshaft Kit with 8 Tooth and 25 Tooth Sprockets for #41 and #420 Chain Weld-on jackshaft kit with 8 tooth and 25 tooth sprockets for a 212.5% increase or decrease in gear ratio. 4" long 5/8" OD jackshaft with keyway. 8 tooth and 25 tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on bearing hangers, and two axle collars with set screws. This is a complete kit that contains everything needed to install a weld-on jackshaft. ...

4-1/2" Inch Jackshaft Kit with 10 Tooth and 15 Tooth Sprockets for #35 Chain Weld-on jackshaft kit with 10 tooth and 15 tooth sprockets for a 50% increase or decrease in gear ratio. 4-1/2" long x 5/8" OD jackshaft with keyway, 10 tooth and 15 tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on steel bearing hangers, and two jackshaft collars with set screws. This is a complete kit that contains everything needed to install a weld-on...