Complete 3/4" X 14" Jackshaft kit will work for 40/41/420 chains.
This is very popular for use on Go Karts and Mini Bikes.
Package Include: 1 * 3/4" by 14" Jackshaft + 2 * 3/4" ID 6003 2RS Bearings + 2 * Collar 3/4" ID + 2 Bearing hangers + 1 * 14 Tooth 3/4" ID #420 Sprocket + 1 * 10 Tooth 3/4" ID Sprocket with built in Key + 1 * 3/16" by 3/16" by 3/4" Keyway + 4 * screws
Note: We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need.