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10 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. 10" 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...

10 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. 10" 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...

10 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. 10" 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. 10" 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. 10" 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. ...

10 Tooth Sprocket with 5/8" Bore for #41 and #420 Chain For #41 and #420 Chain10 Teeth1.84" OD5/8" ID3/16" Key WayTwo Set Screws

12 Tooth Sprocket with 5/8" Bore for #41 and #420 Chain For #41 and #420 Chain12 Teeth2-3/8" OD5/8" ID3/16" Key WayTwo Set Screws

125 Tooth Sprocket for #219 Chain with G4 Mounting Pattern Made from Tempered (Hardened) Aircraft Grade Aluminum Alloy125 TeethFor #219 ChainG4 Mounting Pattern5.25" Bolt Circle Diameter4.563" BoreSix 0.261" ID Bolt Holes Equally Spaced @ 60 Degrees

17 Tooth Sprocket with 5/8" Bore for #41 and #420 Chain For #41 and #420 Chain17 Teeth3" OD5/8" ID3/16" Key WayTwo Set Screws

28 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 ChainF5 Mounting Pattern 28 Teeth 4-3/4" OD 54.1mm ID Five 5.2mm ID Bolt Holes Equally Spaced at 72 Degrees 67mm Bolt Circle Diameter

3/16" x 3/16" x 1/2" Jackshaft Key